The speckled wood (Pararge aegeria) is a butterfly found in and on the borders of woodland areas throughout much of the Palearctic realm. The species is subdivided into multiple subspecies, including Pararge aegeria aegeria, Pararge aegeria tircis, Pararge aegeria oblita, and Pararge aegeria insula. The color of this butterfly varies between subspecies. The existence of these subspecies is due to variation in morphology down a gradient corresponding to a geographic cline. The background of the wings ranges from brown to orange, and the spots are either pale yellow, white, cream, or a tawny orange. The speckled wood feeds on a variety of grass species. The males of this species exhibit two types of mate locating behaviors: territorial defense and patrolling. The proportion of males exhibiting these two strategies changes based on ecological conditions. The monandrous female must choose which type of male can help her reproduce successfully. Her decision is heavily influenced by environmental conditions.
This Blog contains Wildlife and Bird Photos from Walks, Safaris, Birding Trips and Vacations. Most of the pictures have been taken with my Nikon P900 and P950X cameras. If you click on the label underneath the picture it will link to all of the photos taken for that species. Just click on any image for a large picture.
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Friday, 12 May 2017
11-5-2017 MONTE CORONA, VALENCIA - SIERRA NEVADA OCELLATED LIZARD (Timon nevadensis)
Timon nevadensis, the Sierra Nevada lizard, is a species of lizard in the family Lacertidae. It is endemic to Spain. It is sometimes considered a subspecies of the ocellated lizard.
It is a showy and robust lizard, which can reach 26 cm in head-body length and exceed 70 cm in total length. It has strong and well-developed limbs. They are generally grey or brown in colour, with light green scales on the back, and during mating they can acquire more greenish and bluish tones. Its colour and body design change with age, some males lack ornamentation while others have dorsal ocelli in two or more rows. The scales are granular on the back and slightly keeled, while the ventral ones are wide and overlapping one another. Unlike T. lepidus , T. nevadensis lacks jet-black scales on the back, which in this case are grey or brown. Its head is also narrower and longer, as a result, its occipital plate is narrower than in T. lepidus . In addition, the Betic lizards have a lighter coloration in their blue ocelli. Their hind limbs, the end of the back and tail usually have orange-brown tones that T. lepidus does not have . Juveniles have a much more greyish or darker general coloration than juveniles of T. lepidus .
As for sexual dimorphism, males have a much larger head than females, due in part to the greater development of the masseteric muscles. In contrast, females have a greater relative body length than males, which translates into a greater number of ventral scales and lumbar vertebrae. The development of the femoral pores is also greater in males and the base of the tail is wider to accommodate the hemipenes. In general, females tend to maintain designs similar to those of subadults for longer. Juveniles have ocelli bordered with dark on the back and sides.
Thursday, 11 May 2017
19-3-2017 MIAMI, FLORIDA - BOAT TAILED GRACKLE (MALE) (Quiscalus major)
The boat-tailed grackle (Quiscalus major ) is a passerine bird of the family Icteridae found as a permanent resident on the coasts of the Southeastern United States.
The male boat-tailed grackle is 37–43 cm (15–17 in) long and weighs 165–250 g (5.8–8.8 oz). Adult males have entirely iridescent black plumage, a long dark bill, a pale yellowish or brown iris, and a long keel-shaped tail. The adult female is much smaller at 26–33 cm (10–13 in) long and a weight of 90–115 g (3.2–4.1 oz). She is also distinguished by her shorter tail and tawny-brown coloration, which covers the body apart from the darker wings and tail. The wingspan in adult birds is 39–50 cm (15–20 in). In standard measurements, this species measures 13–20 cm (5.1–7.9 in) along the wing bone, 11–20 cm (4.3–7.9 in) in tail length, 2–4.2 cm (0.79–1.65 in) along the culmen, and 3.6–5.8 cm (1.4–2.3 in) along the tarsus. On average, the boat-tailed grackle weighs about 10% more than the closely related great-tailed grackle, although the male great-tailed grackle has an even longer tail.
Young males are black but lack the adult's iridescence. Immature females are duller versions of the adult female and have blotches or spots on the breast. The eye color of the boat-tailed grackle varies with range. Gulf Coast and inland birds have dark eyes, whereas Atlantic birds have pale eyes.
The boat-tailed grackle is found in coastal saltwater marshes and, in Florida, also on inland waters. Boat-tailed grackles have established significant populations in several United States Gulf Coast cities and towns, where they can be found foraging in trash bins, dumpsters, and parking lots.
They forage on the ground, in shallow water, or in shrubs; they will steal food from other birds. They are omnivorous, eating insects, minnows, frogs, eggs, berries, seeds, grain, and even small birds.
The nest is a well-concealed cup in trees or shrubs near water; three to five eggs are laid.
19-3-2017 MIAMI, FLORIDA - LONG TAILED FINCH (Poephila acuticauda)
The long-tailed finch (Poephila acuticauda) is a common species of estrildid finch found in northern Australia, from the Kimberley region to the Gulf of Carpentaria. It is a predominantly fawn-coloured bird with a pale grey head and prominent black bib and eyes. It inhabits dry savannah habitats in Australia and adapts readily to aviculture.
Common names for the species have been assigned or arisen from usage in aviculture, these include the long-tailed finch or longtail, blackheart finch, shaft-tail finch, orange-billed finch or grassfinch. Heck's grassfinch or finch, or Heck's longtail is applied to the eastern subspecies Poephila acuticauda hecki with red beaks, and the nominate subspecies with orange or yellow beaks is referred by the common name for the species.
The adult long-tailed finch is around 160 mm in length, the weight range of males is 13.5–16.2 grams and females 11.4–17.6 g. It has a prominent roundish black bib on its throat and upper chest and a long pointed black tail. It has pinkish brown upperparts with paler plumage below its bib over the lower breast and abdomen. It has a grey head, a white ear-patch, and black lores. It has black patches on its upper flanks and its rump and undertail coverts are white. The beak colour of the adult long-tailed finch varies from red through orange to yellow. Males and females are similar, except the females may be slightly duller and may have a slightly smaller bib. Females have shorter wings and tails than males on average, but their measurements, as well as throat bib size, generally lie within the range of male measurements. Furthermore, male and female plumage is indistinguishable in ultraviolet and visible light. A study published in 1999 showed that male long-tailed finches were unable to determine the sex of unfamiliar members of their species unless the latter bird declared its sex by song. Juveniles have black beaks and shorter tail feathers.
25-3-2017 RANCHO NATURALISTA, COSTA RICA - BORDER ANOLE (Anolis limifrons)
Anolis limifrons, also known commonly as the slender anole or the border anole, is a species of lizard in the family Dactyloidae. The species is native to Central America.
Geographic range
A. limifrons is found in Guatemala, Belize, Honduras, Nicaragua, Costa Rica, and Panama.
Reproduction
A. limifrons is oviparous.
9-5-2017 RONDA, ANDALUSIA - EUROPEAN GOLDFINCH (Carduelis carduelis)
The European goldfinch, or simply goldfinch (Carduelis carduelis), is a small, vibrant passerine bird belonging to the finch family. This charming avian species is adorned with a striking red face, encircled by black markings near the eyes, and a black-and-white head. The back and flanks exhibit a warm buff or chestnut brown, while the wings are black with a prominent yellow bar. The tail is black, and the rump is a contrasting white. Males and females are similar in appearance, though the male boasts a slightly more extensive red mask.
Upon closer inspection, one can discern the male goldfinch by its larger, more vivid red mask that extends just beyond the eye. The female's red face does not reach past the eye, and her shoulder feathers are brown, as opposed to the male's black. The bill is ivory-colored, long, and pointed, and the tail is forked. Juveniles can be identified by their plain heads and greyer backs, but the yellow wing stripe is a clear indicator of their species.
The European goldfinch favors open, partially wooded lowlands and is a resident in the milder western parts of its range. In colder regions, it migrates to escape the harsh weather.
Native to Europe, North Africa, and western and central Asia, the European goldfinch has also been introduced to various regions across the globe, including Australia, New Zealand, and Uruguay.
The European goldfinch is known for its sociable nature, often forming flocks in the winter. It is a frequent visitor to bird feeders, particularly in the colder months.
The goldfinch's song is a delightful, silvery twittering, while its call is a melodic tickeLIT. Its song comprises a tinkling medley of trills and twitters, always including the tri-syllabic call phrase.
The female goldfinch solely constructs the nest, which is often situated several meters above ground, camouflaged by leaves. The nest is made of mosses and lichens, lined with plant down, and secured with spider silk. Eggs are laid at daily intervals, typically resulting in a clutch of 4-6 eggs. Incubation lasts 11-13 days, with the female being fed by the male. Both parents feed the chicks, which fledge 13-18 days after hatching.
Goldfinches have a preference for small seeds, such as those from thistles and teasels, but will also consume insects when feeding young. They are particularly drawn to bird feeders offering niger seed.
The European goldfinch has a long history of being kept and bred in captivity due to its attractive plumage and pleasant song. It has also been featured in various works of art and literature, symbolizing different cultural and religious themes.
9-5-2017 RONDA, ANDALUSIA - SPOTTED FLYCATCHER (Muscicapa striata)
The Spotted Flycatcher, Muscicapa striata, is a modestly adorned yet charming small passerine bird belonging to the Old World flycatcher family. It is a migratory species, breeding across Europe and the Palearctic as far as Siberia, and spending the winter months in Africa and southwestern Asia. Despite its widespread presence, there is concern over its decline in certain areas.
Adult Spotted Flycatchers possess grey-brown upperparts and a somewhat pallid underbelly. Their crown and breast are streaked, which is the origin of their common name. They have short, black legs and a black bill shaped to suit their insectivorous diet. Juveniles can be distinguished by their browner plumage and the presence of spots on their upperparts.
These birds favor deciduous woodlands, parks, and gardens, particularly those with open spaces amidst trees.
The Spotted Flycatcher has a broad breeding range, extending from Europe to western Siberia and northwest Africa. During the non-breeding season, they migrate to southern Africa.
With an upright posture, these flycatchers are often seen hunting from prominent perches, darting out to snatch flying insects and frequently returning to the same spot.
The call of the Spotted Flycatcher is a soft, high-pitched, and slightly descending 'tssssseeeeeppppp'.
The Spotted Flycatcher constructs an open nest in a recess, often against a wall, and is amenable to using open-fronted nest boxes. Clutches typically consist of 4-6 eggs. Remarkably, they exhibit excellent egg recognition, a likely evolutionary response to past parasitism by the common cuckoo.
The Mediterranean flycatcher, previously considered a subspecies, is similar in appearance but has been recognized as a separate species due to genetic differences.
As aerial insectivores, Spotted Flycatchers feed on flying insects, which they catch in mid-air from their vantage points.
The IUCN currently lists the Spotted Flycatcher as Least Concern, although there are noted declines in some regions of its range.
9-5-2017 RONDA, ANDALUSIA - EUROPEAN SERIN (MALE) (Serinus serinus)
The European serin, or simply the serin (Serinus serinus), is a diminutive member of the finch family, Fringillidae. This sprightly bird is the smallest within its family, closely related to the Atlantic canary. It is characterized by its short tail and a length that spans a mere 11 to 12 centimeters. The serin's plumage is a tapestry of nature's palette, with upper parts dappled in dark-streaked greyish green and a conspicuous yellow rump. The underparts are a canvas of yellow breast and white belly, both adorned with heavy streaks.
When attempting to identify the European serin, look for the male's radiant yellow face and breast, which stand out against the greenish backdrop of its feathers. The male also boasts yellow wing bars and yellow tail sides, which can be quite helpful in distinguishing it from similar species. Both sexes share a buzzing trill of a song that resonates through their Mediterranean habitats.
The European serin is partial to open woodland and cultivated areas, often with a sprinkling of conifers. These environments provide the perfect backdrop for breeding and foraging.
This species has a breeding range that extends across southern and central Europe and into North Africa. Populations along the southern and Atlantic coasts tend to be resident, while those in the north are migratory, seeking warmer climates in southern Europe during the winter months.
Outside of the breeding season, the European serin is a sociable creature, forming flocks that may sometimes mingle with other finch species. It is an active and often conspicuous bird, its presence easily announced by its distinctive trill.
The serin's song is a distinctive buzzing trill, a sound that becomes part of the ambient music in regions where these birds are common.
The European serin weaves its nest within the shelter of a shrub or tree, where it lays a clutch of 3 to 5 eggs. The chosen breeding habitats are often areas of open woodland and cultivation, with a preference for some conifers.
The diet of the European serin is predominantly seeds, but it does not shy away from including insects during the breeding season, providing essential protein for its young.
The IUCN Red List categorizes the European serin as Least Concern, indicating that, for now, this species does not face any imminent threats to its survival.
9-5-2017 RONDA, ANDALUSIA - COMMON HOUSE MARTIN (Delichon urbicum)
The western house martin (Delichon urbicum), sometimes called the common house martin, northern house martin or, particularly in Europe, just house martin, is a migratory passerine bird of the swallow family which breeds in Europe, north Africa and across the Palearctic; and winters in sub-Saharan Africa and tropical Asia. It feeds on insects which are caught in flight, and it migrates to climates where flying insects are plentiful. It has a blue head and upperparts, white rump and pure white underparts, and is found in both open country and near human habitation. It is similar in appearance to the two other martin species of the genus Delichon, which are both endemic to eastern and southern Asia. It has two accepted subspecies.
Both the scientific and colloquial name of the bird are related to its use of human-made structures. It builds a closed cup nest from mud pellets under eaves or similar locations on buildings usually in colonies.
It is hunted by the Eurasian hobby (Falco subbuteo), and like other birds is affected by internal parasites and external fleas and mites, although its large range and population mean that it is not threatened globally.
The western house martin breeds across temperate Eurosiberia east to central Mongolia and the Yenisei River, and in Morocco, Tunisia and northern Algeria, and migrates on a broad front to winter in sub-Saharan Africa.
The preferred habitat of the western house martin is open country with low vegetation, such as pasture, meadows and farmland, and preferably near water, although it is also found in mountains up to at least 2,200 m (7,200 ft) elevation. It is much more urban than the barn swallow, and will nest even in city centres if the air is clean enough. It is more likely to be found near trees than other Eurasian swallows, since they provide insect food and also roosting sites. This species does not normally use the reed-bed roosts favoured by migrating barn swallows.
It uses similar open habitats on the wintering grounds, but the western house martin is less conspicuous than wintering barn swallows, tending to fly higher and be more nomadic. In the tropical parts of its wintering range, like East Africa, it appears to be mainly found in the higher areas.
9-5-2017 RONDA, ANDALUSIA - ROCK SPARROW (Petronia petronia)
The Rock Sparrow, or Rock Petronia (Petronia petronia), is a small passerine bird, the sole representative of its genus. It is characterized by a robust conical bill and a distinctive yellow throat spot, which is a carotenoid-based trait indicative of attractiveness and social status in both sexes. This bird measures approximately 14 cm in length and sports a strong whitish supercilium, a less pronounced crown stripe, patterned brown back and wings, and streaked underparts.
When attempting to identify the Rock Sparrow, look for its larger bill compared to the House Sparrow, the prominent whitish supercilium, and the subtle crown stripe. The key distinguishing feature is the yellow throat spot, which can be challenging to see but is crucial for accurate identification. The bird's overall plumage is an array of earth tones, providing excellent camouflage against its rocky habitat.
The Rock Sparrow favors barren rocky hills, where it can be found in crevices and walls, a preference that is reflected in its name. It is also known to inhabit human settlements that offer suitable rocky environments.
This species has a wide range, breeding from the Iberian Peninsula and western North Africa, across southern Europe, and extending through the Palearctic to Siberia and north and central China. While it is largely resident in the western part of its range, Asian populations are known to migrate southward or descend from mountainous areas in response to seasonal changes.
Rock Sparrows are gregarious birds, often seen in flocks. They exhibit a variety of mating patterns, with social monogamy being the most common. However, both sequential and simultaneous polyandry have been observed. The size of the male's yellow breast patch has been correlated with parental investment and nestling growth, suggesting a link between ornamentation and reproductive success.
The Rock Sparrow's vocalizations are described as loud and wheezy, contributing to the soundscape of its rocky habitats.
During the breeding season, Rock Sparrows nest in rock crevices or wall gaps, laying four to five eggs. The species demonstrates a preference for mates with larger yellow patches, which influences male brood defense behaviors and parental investment. In alpine colonies, females predominantly provision the young, while in Asian colonies, both parents contribute equally.
The diet of the Rock Sparrow consists mainly of seeds year-round, with the addition of berries in the autumn. Come spring, their diet shifts to include invertebrates such as caterpillars and grasshoppers, which are also fed to their offspring.
9-5-2017 RONDA, ANDALUSIA - EURASIAN BLACKBIRD (MALE) (Turdus merula)
The Common Blackbird, Turdus merula, is a true thrush and a familiar sight in gardens and woodlands. The male is distinguished by its all-black plumage, bright yellow eye-ring, and orange-yellow bill, which darkens slightly during winter. Females and juveniles are more demure in their attire, sporting mainly dark brown feathers.
Adult males are entirely black with the exception of the yellow eye-ring and bill. Females are sooty-brown with a duller bill, and juveniles resemble females but have pale spots on their upperparts. The very young may also exhibit a speckled breast.
The Common Blackbird thrives in a variety of habitats including woodlands with dense undergrowth, gardens, parks, and hedgerows. It shows a preference for deciduous trees and areas with thick vegetation.
This species is widespread across Europe, western Asia, and North Africa. It has also been introduced to Australia and New Zealand. Its range varies from resident populations in the milder regions to partially or fully migratory populations in areas with more severe winters.
The Common Blackbird is territorial, especially during breeding season, with males displaying distinctive threat behaviors to ward off rivals. Outside of breeding season, they can be more sociable, often forming small flocks. The species is known for its adaptability to urban environments, where it may overwinter more readily than in rural settings.
The male's song is a melodious and fluted warble, often heard from elevated perches during the breeding season. The Common Blackbird also has a repertoire of calls including a sharp "seee" when agitated and a "pook-pook-pook" to signal ground predators.
Monogamous by nature, the Common Blackbird builds a neat, cup-shaped nest, often in dense shrubbery. The female lays three to five bluish-green eggs adorned with reddish-brown blotches. Both parents are involved in feeding the altricial chicks until they fledge.
An omnivore, the Common Blackbird forages primarily on the ground for insects, earthworms, seeds, and berries. It is adept at pulling earthworms from the soil and foraging through leaf litter for other invertebrates.
Wednesday, 10 May 2017
9-5-2017 RONDA, ANDALUSIA - EURASIAN WREN (Troglodytes troglodytes)
The Eurasian wren (Troglodytes troglodytes) or northern wren is a very small insectivorous bird, and the only member of the wren family Troglodytidae found in Eurasia and Africa (Maghreb). In Anglophone Europe, it is commonly known simply as the wren. It has a very short tail which is often held erect, a short neck and a relatively long thin bill. It is russet brown above, paler buff-brown below and has a cream buff supercilium. The sexes are alike.
The species was once lumped with Troglodytes hiemalis of eastern North America and Troglodytes pacificus of western North America as the winter wren. The Eurasian wren occurs in Europe and across the Palearctic – including a belt of Asia from northern Iran and Afghanistan across to Japan. It is migratory in only the northern parts of its range. It is also highly polygynous, an unusual mating system for passerines.
The Eurasian wren was described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Motacilla troglodytes. The specific epithet is from the Ancient Greek trōglodutēs meaning "cave-dweller". In 1555 the German naturalist Conrad Gessner had used the Latin name Passer troglodyte for the Eurasian wren in his Historiae animalium. The species is now placed in the genus Troglodytes that was introduced by the French ornithologist Louis Pierre Vieillot in 1809.
The Eurasian wren was formerly considered conspecific with two North American species: the winter wren (Troglodytes hiemalis) and the Pacific wren (Troglodytes pacificus). Some ornithologists place the Eurasian wren, the winter wren and the Pacific wren in a separate genus Nannus that was introduced by the Swedish naturalist Gustaf Johan Billberg in 1828 with the Eurasian wren as the type species.
Common but inconspicuous in woodland habitats with dense undergrowth, gardens, farmland hedgerows, heathland and coastal cliffs. It usually sings from a fairly exposed perch, but on other occasions it behaves like a mouse, moving between the brambles and undergrowth. It is easily identified by its small size, brown plumage, and the habit of keeping its tail elevated. It is heard more frequently than it is seen. The song is powerful and lively with a diverse series of repeating trills and chirps.
Tuesday, 9 May 2017
9-5-2017 RONDA, ANDALUSIA - EUROPEAN SERIN (MALE) (Serinus serinus)
The European serin, or simply the serin (Serinus serinus), is a diminutive member of the finch family, Fringillidae. This sprightly bird is the smallest within its family, closely related to the Atlantic canary. It is characterized by its short tail and a length that spans a mere 11 to 12 centimeters. The serin's plumage is a tapestry of nature's palette, with upper parts dappled in dark-streaked greyish green and a conspicuous yellow rump. The underparts are a canvas of yellow breast and white belly, both adorned with heavy streaks.
When attempting to identify the European serin, look for the male's radiant yellow face and breast, which stand out against the greenish backdrop of its feathers. The male also boasts yellow wing bars and yellow tail sides, which can be quite helpful in distinguishing it from similar species. Both sexes share a buzzing trill of a song that resonates through their Mediterranean habitats.
The European serin is partial to open woodland and cultivated areas, often with a sprinkling of conifers. These environments provide the perfect backdrop for breeding and foraging.
This species has a breeding range that extends across southern and central Europe and into North Africa. Populations along the southern and Atlantic coasts tend to be resident, while those in the north are migratory, seeking warmer climates in southern Europe during the winter months.
Outside of the breeding season, the European serin is a sociable creature, forming flocks that may sometimes mingle with other finch species. It is an active and often conspicuous bird, its presence easily announced by its distinctive trill.
The serin's song is a distinctive buzzing trill, a sound that becomes part of the ambient music in regions where these birds are common.
The European serin weaves its nest within the shelter of a shrub or tree, where it lays a clutch of 3 to 5 eggs. The chosen breeding habitats are often areas of open woodland and cultivation, with a preference for some conifers.
The diet of the European serin is predominantly seeds, but it does not shy away from including insects during the breeding season, providing essential protein for its young.
The IUCN Red List categorizes the European serin as Least Concern, indicating that, for now, this species does not face any imminent threats to its survival.
9-5-2017 RONDA, ANDALUSIA - COAL TIT (Periparus ater)
The Coal Tit, scientifically known as Periparus ater, is a diminutive passerine bird belonging to the tit family, Paridae. It is easily recognized by its large white nape spot set against a black head. The adult's glossy blue-black head, throat, and neck contrast with the off-white face and brilliant white nape. The underparts range from whitish to rufous on the flanks, and the bird's bill is a stark black.
To identify the Coal Tit, look for the distinctive white nape spot on its black head. The sides of the face may have a grey to yellow tinge, depending on the subspecies. The white tips of the wing coverts are visible as two wingbars. Juveniles are duller, lacking the glossy black head, and their white nape and cheeks are tinged with yellow.
The Coal Tit is not particularly habitat-specific but is typically found in temperate humid conifer forests. It can also be seen in a variety of wooded areas, including mixed forests and gardens.
This species is a widespread and common resident breeder throughout the temperate to subtropical Palearctic, including North Africa. It is mostly sedentary, with only local movements in response to severe weather.
Coal Tits are known for their acrobatic skills and restless activity. They often form small flocks with other tits during winter. Their foraging behavior is influenced by risk, and they are known to increase body mass in response to predator calls and adjust their mass gain based on food availability.
The Coal Tit's calls are short "dee" or "see-see" sounds, while its song is a strident "if-he, if-he, if-he," which is most frequently heard from January to June and in autumn. The song is similar to that of the Great Tit but is much faster and higher in pitch.
Nesting sites are varied, including holes in rotting tree stumps, ground burrows, and old nests of other large birds. The nest is made of moss, hair, and grass, with a lining of rabbit fur or feathers. The Coal Tit typically lays seven to eleven red-spotted white eggs, mainly in May, and usually breeds once per year.
The Coal Tit can be confused with other tit species, but its distinctive white nape spot and black head are key differentiators.
The diet consists of beechmast, seeds from fir and larch cones, and seeds from alders and birches. They also visit gardens to feed on sunflower seeds and other offerings.
1-4-2017 MIAMI, FLORIDA - GREAT HORNED OWL (Bubo virginianus)
The Great horned owl (Bubo virginianus) is a large owl native to the Americas. It is an extremely adaptable bird with a vast range and is the most widely distributed true owl in the Americas. The Great horned owl is one of the earliest nesting birds in North America, often laying eggs weeks or even months before other raptorial birds.
The Great horned owl is a round-faced bird with a distinctive horn-shaped feather tuft on the crown of its head, which is darker than the rest of its head, promoting the overall camouflage. The owl possesses powerful, solid legs, feet, and claws. The Great horned owl has binocular vision due to its eyes, facing forward. The eyes of the horned owl are various shades of yellow. This bird can also be distinguished by the white colored patch on its throat. Black and brown stripes extend all over the white underbelly. The bill of the bird is black, surrounded by white or tan colored plumage. The plumage on their back is darker, covered with brown and black markings.
This owl is native to the Americas with its range, covering the greater part of North America, stretching to Central America, and reaching South America. The Great horned owl occurs primarily in woodlands and open fields, scattered throughout its range. However, the species can also be found in mangroves, grasslands, swampy and marshy areas as well as deserts. In addition, this bird occasionally inhabits human settlements, found throughout rural and urban areas.
These birds are solitary animals, socializing only for nesting. They usually roost by day in protected places such as a tree limb or a recess in a rock. Great horned owls are efficient nighttime hunters, though they are known to hunt in the daytime as well. Horned owls are non-migratory, remaining within the same area throughout the year. Some individuals may become "territorial floaters", not having a certain territory and constantly traveling through territories of other owls. These birds use hooting as a form of communication. Through hooting, they can search for mates during the mating season as well as set up territorial dominance.
Great horned owls have a monogamous mating system and form long-lasting pair bonds. Typically, the mated pairs are territorial, driving away other pairs from their territory in order to have full access to prey. By the mating season, the birds begin hooting with increased intensity, looking for mates. Female owls hoot only during this period while males normally hoot all year round. Breeding season takes place from November to April. The mating pair finds a nest, which is usually one, abandoned by a squirrel or another bird, including a Great horned owl. The female may lay up to 6 eggs with an average of 2-3. Both parents take part in the incubation for 30-35 days. After hatching, both parents provide the chicks with food. Young fledge by 6-9 weeks old, becoming independent at the age of 5-10 weeks. Reproductive maturity is achieved between 1 and 3 years of age.
9-5-2017 RONDA, ANDALUSIA - BLUE ROCK THRUSH (MALE) (Monticola solitarius)
The blue rock thrush (Monticola solitarius) is a chat species, reminiscent of a thrush, with a starling-like stature, measuring 21–23 cm in length. The male of the nominate subspecies is predominantly blue-grey, save for darker wings, presenting a striking appearance. Females and immature birds are less vivid, with dark brown upperparts and paler, scaly brown underparts. The male of the subspecies M. s. philippensis is distinguished by rufous-chestnut plumage from the mid-breast to the undertail, a feature absent in both sexes of the rock thrush.
To identify the blue rock thrush, look for the male's unmistakable blue-grey plumage and the female's less conspicuous brown tones. The male M. s. philippensis can be recognized by its rufous-chestnut lower half. Both sexes lack the reddish outer tail feathers seen in rock thrushes.
This bird favors open, mountainous regions where it can nest in rock cavities and walls.
The blue rock thrush breeds across southern Europe, northwest Africa, and from Central Asia to northern China and Malaysia. It is a resident bird in Europe, north Africa, and southeast Asia, with some populations exhibiting altitudinal migration. Other Asian populations are migratory, wintering in sub-Saharan Africa, India, and southeast Asia. It is a rare visitor to northern and western Europe.
The blue rock thrush is an omnivore, consuming a varied diet of insects, small reptiles, berries, and seeds. It breeds in its preferred mountainous habitats, laying 3-5 eggs per clutch.
The male's song is a clear and melodious call, louder than that of the rock thrush, which can be heard echoing through its mountainous domain.
As an omnivore, the blue rock thrush has a diverse diet that includes insects, small reptiles, berries, and seeds.
The blue rock thrush is currently listed as Least Concern on the IUCN Red List, indicating that it is not at immediate risk of population decline.
8-5-2017 SEVILLE, ANDALUCIA - EURASIAN BLACKBIRD (MALE) (Turdus merula)
The Common blackbird (Turdus merula) is a species of true thrush. It is also called the Eurasian blackbird (especially in North America, to distinguish it from the unrelated New World blackbirds), or simply the blackbird where this does not lead to confusion with a similar-looking local species. This common and conspicuous species has given rise to a number of literary and cultural references, frequently related to its song.
The adult male has glossy black plumage, blackish-brown legs, a yellow eye ring, and an orange-yellow bill. The bill darkens somewhat in winter. The adult female is sooty-brown with a dull yellowish-brownish bill, a brownish-white throat, and some weak mottling on the breast. The juvenile is similar to the female but has pale spots on the upperparts, and the very young juvenile also has a speckled breast. Young birds vary in the shade of brown, with darker birds presumably males. The first-year male resembles the adult male but has a dark bill and weaker eye ring, and its folded wing is brown, rather than black like the body plumage.
23-3-2017 SAN GERARDO DE DOTA COSTA RICA - COLLARED TROGON (MALE) (Trogon collaris)
The collared trogon (Trogon collaris) is a near passerine bird in family Trogonidae, the quetzals and trogons. It is found in Mexico, throughout Central America, and in northern South America.
The collared trogon usually perches between the higher understory and the lower part of the canopy. It is usually seen singly or in pairs, but small groups may gather outside the breeding season.
The collared trogon eats small fruits (such as berries) and invertebrates such as caterpillars, crickets, cicadas, beetles, and phasmids. They often accompany the edges of mixed-species foraging flocks but do not mix with the other members.
8-5-2017 RONDA, ANDALUSIA - EUROPEAN STONECHAT (Saxicola rubicola)
The European stonechat, Saxicola rubicola, is a small, charming passerine bird, once thought to be a member of the thrush family but now placed within the Old World flycatcher family, Muscicapidae. This species exhibits a striking sexual dimorphism, with males donning a black plumage with vibrant orange throats and females wearing a more subdued brown.
Males in their summer plumage are unmistakable with their black heads, orange throats, and white bellies. They also sport a distinctive white half-collar and small white patches on the wings and rump. Females, on the other hand, are predominantly brown with less pronounced white wing patches. Both sexes have notably short wings, which are shorter than those of their migratory relatives.
The European stonechat favors heathlands, coastal dunes, and open grasslands dotted with shrubs, brambles, and heather. These habitats provide the perfect backdrop for their active foraging and breeding behaviors.
This species is widely distributed across Europe, reaching as far east as Ukraine and the South Caucasus, and can also be found in parts of North Africa.
Stonechats are known for their lively presence, often perching conspicuously as they keep a vigilant eye on their surroundings. They exhibit a partial migratory pattern, with some populations moving southward to escape the colder winters.
The male stonechat's song is a delightful, high-pitched twitter, reminiscent of a dunnock's melody. Both sexes communicate with a distinctive call that evokes the sound of two stones being tapped together.
European stonechats are monogamous during the breeding season and commence their reproductive efforts at one year of age. They raise two to three broods per season, with the female constructing the nest and both parents tending to the young.
The European stonechat can be confused with the Siberian stonechat and the African stonechat, but genetic evidence supports their distinction as separate species.
These birds are adept insectivores, gleaning a variety of invertebrates from their environment to sustain themselves and their offspring.
The European stonechat does not currently face any significant conservation threats and enjoys a stable population across its range.
8-5-2017 ARCOS DE FRONTERA, ANDALUSIA - BARN OWL (Tyto alba)
The Barn owl (Tyto alba) is the most widely distributed species of owl in the world and one of the most widespread of all species of birds. It is found almost everywhere in the world except for the polar and desert regions, Asia north of the Himalayas, most of Indonesia, and some Pacific Islands. This owl does not hoot but utters an eerie, drawn-out screech.
The Barn owl is a medium-sized, pale-colored bird with long wings and a short, squarish tail. Its head and upper body typically vary between pale brown and some shade of grey in most subspecies. Some are purer, richer brown instead, and all have fine black-and-white speckles except on the remiges and rectrices (main wing and tail feathers), which are light brown with darker bands. The heart-shaped face is usually bright white, but in some subspecies it is brown. The left ear is slightly above the eyes on the vertical plane, whereas the right ear is slightly below the eyes. The underparts vary from white to reddish buff among the subspecies and are either mostly unpatterned or bear a varying number of tiny blackish-brown speckles. The beak varies from pale horn to dark buff, corresponding to the general plumage hue, and the iris is blackish brown. The feet, like the beak, also vary in color, ranging from pink to dark pinkish-grey and the talons are black.
Barn owls occur in all of Europe (except Fennoscandia and Malta), most of Africa apart from the Sahara, the Indian subcontinent, Southeast Asia, Australia, many Pacific Islands, and North, Central, and South America. In general, they are considered to be sedentary, and indeed many individuals remain in chosen locations even when better foraging areas nearby become vacant. Barn owls are birds of open country such as farmland, plantation, shrubland, savanna, or grassland with some interspersed woodland. They prefer to hunt along the edges of woods or in rough grass strips adjoining pasture. For nesting and roosting, they choose holes in trees, fissures in cliffs, disused buildings, chimneys, hay sheds, barns, or silos.
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