BIRDWALKERMONDAY WILDLIFE BLOG

This Blog contains Wildlife, Plants and Bird Photos from Walks, Safaris, Birding Trips and Vacations. Most of the pictures have been taken with my Nikon P900 and P950X cameras. Just click on any image for a larger picture. On the right column under the Blog Archive are the entries by date. Below that under Animal categories all the diffent species of Animals, Birds, Insects and Plants contained in the website are listed. Clicking on any entry will show all the entries for that species.

Thursday, 25 November 2021

25-11-2021 CANAL LES FONTS OLIVA, VALENCIA - COMMON CHIFFCHAFF (Phylloscopus collybita)

https://www.inaturalist.org/taxa/117016-Phylloscopus-collybita

3-6-2019 LINYANTI CAMP, BOTSWANA - ARNOT'S CHAT (Myrmecocichla arnotti)

Arnot's chat ranges in size from 16 to 18 cm (6.3–7.1 in) and weighs around 35 g (1.2 oz). The plumage of the adults is sexually dimorphic; the male of the nominate race is overall black with a white crown and a white patch on the wing coverts. The female is similar but with a black crown and a white (tipped with black) throat and neck. The bill and legs are black. Juvenile birds are like the adults but with white feather tips on the crown or throat instead of fuller white. The male of the race harterti has less extensive white on the wings and a mostly black head with a small area of white on the forehead and above the eye; the white throat of the female is also less extensive than on the nominate.

Diet & Behavior: Forages in mid-to-low tree levels and on the ground; often in pairs or family groups.

Vocalization: Features a fast, exuberant song of clucks, whistles, and rattles.

Nesting: Builds nests in tree holes, sometimes using old woodpecker holes, filling them with debris.

Conservation: Experiences local declines due to habitat destruction and DDT, according to BirdLife International.

Name Origin: Named after a Canon Tristram, who mistakenly spelled the knight's name as "Arnott" when assigning the honorific, says Birds of the World.

Wednesday, 24 November 2021

3-6-2019 LINYANTI CAMP, BOTSWANA - ZAMBESI CRESTED BARBET (Trachyphonus vaillantii ssp. nobilis)

The Zambezi crested barbet is the common crested barbet (Trachyphonus vaillantii), a vibrantly colored sub-Saharan bird known for its loud trilling call and aggressive, territorial behavior.

Appearance: This is a small (23–24 cm), chunky bird with a thick, pale bill and colorful plumage. It has a speckled yellow and red face, a small black crest, a yellow belly with red spots, and black wings with white specks. The male and female plumage is similar.

Habitat and Distribution: It is found in a variety of wooded areas, including forests, savannas, riverine thickets, and even suburban gardens across countries like Zambia, South Africa, Botswana, and Mozambique.

Behavior: Crested barbets are usually seen singly or in pairs and are notably aggressive, chasing away other birds (like doves and thrushes) and have even been known to attack rats and snakes in their territory. They do not fly easily or for long distances, preferring to hop around on the ground to forage.

Diet: Their diet is omnivorous, consisting of insects, fruits, snails, and sometimes the eggs or chicks of other birds. They are considered a friend to gardeners because they consume the local snail population.

3-6-2019 LINYANTI CAMP, BOTSWANA - RED EYED DOVE (Streptopelia semitorquata)

The red-eyed dove (Streptopelia semitorquata ) is a dove that is a widespread and common in Sub-Saharan Africa. It has been listed as Least Concern on the IUCN Red List since 2004.

The red-eyed dove is a largish, stocky pigeon, typically 30 cm (12 inches) in length. Its back, wings and tail are pale brown. When flying, it shows blackish flight feathers. The head and underparts are dark vinous-pink, shading to pale grey on the face. There is a black hind neck patch edged with white. The legs and a patch of bare skin around the eye are red. The call is a loud doo-doo-du-du.

Sexes are similar, but juveniles are duller than adults, and have scalloping on the body feathers.

Red-eyed doves eat grass seeds, grains and other vegetation. They often forage on the ground.

3-6-2019 LINYANTI CAMP, BOTSWANA - MARTIAL EAGLE (Polemaetus bellicosus)

The Martial Eagle (Polemaetus bellicosus), a formidable raptor, reigns over the sub-Saharan skies. This solitary species, the sole member of its genus, is distinguished by its impressive size and power. With feathered tarsi characteristic of the booted eagle subfamily, it is one of the largest of its kind. The Martial Eagle is an apex predator, soaring high to stoop upon a diverse array of prey, from mammals to reptiles.

Adult Martial Eagles exhibit a dark brown plumage on their upperparts, head, and upper chest, with occasional lighter feather edges. Their underparts are white, marked with sparse blackish-brown spots. In flight, their long broad wings and short tail give them a distinctive silhouette. Juveniles are paler with a greyish mottled appearance and take up to seven years to acquire their adult plumage.

The Martial Eagle favors wooded belts within open savanna landscapes, avoiding dense forests and arid deserts. It is often found perched in an upright position in large trees, surveying its territory.

This eagle's range spans across sub-Saharan Africa, with higher densities in southern and parts of east Africa. It is more sporadic in west Africa, with notable populations in protected areas such as South Africa's Kruger National Park.

Martial Eagles spend a significant portion of their day aloft, soaring at great heights. They are solitary outside of the breeding season and exhibit a preference for less disturbed areas, likely due to the abundance of prey and aversion to human activity.

The Martial Eagle is not a frequent vocalizer, but it does emit a low mellow whistle as a contact call and a louder, trilling call during territorial displays.

Breeding occurs at various times across their range, with nests built high in large trees. They lay usually one egg, with the female performing most of the incubation. Fledglings remain dependent on their parents for several months post-fledging.

The Black-chested Snake Eagle may be confused with the Martial Eagle but is significantly smaller with different coloring and flight patterns. Juvenile Martial Eagles may be mistaken for juvenile Crowned Eagles but differ in wing and tail proportions.

Martial Eagles are opportunistic predators, with a diet comprising mammals, birds, and reptiles. They are known for hunting from a high soar, using their keen eyesight to spot prey from several kilometers away.

The Martial Eagle is currently classified as Endangered by the IUCN, with populations declining due to factors such as persecution, habitat destruction, and collisions with power lines. Conservation efforts focus on education and the expansion of protected areas.

3-6-2019 LINYANTI CAMP, BOTSWANA - AFRICAN OPENBILL (Anastomus lamelligerus)

The African Openbill (Anastomus lamelligerus ) is a species of stork from the family Ciconiidae. It is widely distributed in Sub-Saharan Africa and western regions of Madagascar. This species is considered common to locally abundant across its range, although it has a patchy distribution. Some experts consider there to be two sub-species, A. l. lamelligerus distributed on the main continent and A. l. madagascariensis living on the island of Madagascar. Scientists make the difference between the two sub-species due to the more pronounced longitudinal ridges on the bills of adult A. l. madagascariensis.The Asian Openbill (Anastomus oscitans ) distributed in Asia is the African Openbill’s closest relative. The two species share the same notably large bill of a peculiar shape that gives them their name.

The African Openbill is a stork measuring 80-94 cm and weighing 1-1.3 kg. The species does not exhibit any major sexual dimorphism, although the males are slightly larger than the females and have a longer and heavier bill. The adult bill is betwen 135-196 mm in length, brownish in color and has a gap between the upper aend lower mandible. This gap is non-existent in juvenile birds and develops as the bird ages. It is because the two mandibles of the beak only meet at the tip and not in the middle that this stork genus received the name of “openbill”.

The adult plumage is overall black with iridescent green feathers on their backs, coverts and abdomens. The juvenile plumage is usually less vibrant and browner in color with the feathers of the underparts having pale tips. The legs and feet are black. The eyes are grey with grey lores and no distinct coloration of the eye-ring.

These storks are smaller in stature than most of the other species in their family which allows them to be much more agile in the air. This agility can be observed during their descents from high altitudes as they often perform steep dives and remarkable acrobatic manoeuvres. During their migration flights, the African openbill storks will use sustained flapping flight with an average wing flap rate of 200-210 flaps/minute. They will also often soar on the thermals when commuting to and from distant feeding areas. This allows them to travel long distances to obtain food without expending too much energy. In flight, these birds have their necks and head extended and their long, broad wings are spread out and perfect for soaring and gliding on the air currents.

3-6-2019 LINYANTI CAMP, BOTSWANA - WHITE FACED WHISTLING DUCK (Dendrocygna viduata)

The white-faced whistling duck (Dendrocygna viduata) is a whistling duck that breeds in sub-Saharan Africa and much of South America.

This species is gregarious, and at favoured sites, the flocks of a thousand or more birds arriving at dawn are an impressive sight. As the name implies, these are noisy birds with a clear three-note whistling call.

The white-faced whistling duck was formally described by the Swedish naturalist Carl Linnaeus in 1766 in the twelfth edition of his Systema Naturae under the binomial name Anas viduata. He specified the type locality as Cartagena in Colombia. The white-faced whistling duck is now one of eight species placed in the genus Dendrocygna that was introduced in 1837 by the English naturalist William Swainson. The species is considered as monotypic: no subspecies are recognised. The genus name combines the Ancient Greek dendron meaning "tree" with the genus name Cygnus Bechstein, 1803, meaning "swan" in Latin. The specific epithet viduata is Latin meaning "widowed" or "in mourning".

3-6-2019 LINYANTI CAMP, BOTSWANA - CHAPMAN'S ZEBRA (Equus quagga ssp. chapmani)

Chapman's zebra (Equus quagga chapmani), named after explorer James Chapman, is a subspecies of the plains zebra from southern Africa.

Chapman's zebra are native to savannas and similar habitats of north-east South Africa, north to Zimbabwe, west into Botswana, the Caprivi Strip in Namibia, and southern Angola. Like the other subspecies of plains zebra, it is a herbivore that exists largely on a diet of grasses, and undertakes a migration during the wet season to find fresh sources of food and to avoid lions, which are their primary predator. Chapman's zebras are distinguished from other subspecies by subtle variations in their stripes.

When compared to other equids in the region Chapman's zebras are relatively abundant in number, however its population is now in decline largely because of human factors such as poaching and farming. Studies and breeding programs have been undertaken with the hope of arresting this decline, with a focus on ensuring zebras bred in captivity are equipped for life in the wild, and that non-domesticated populations are able to freely migrate. A problem faced by some of these programs is that captive Chapman's zebra populations experience higher incidence of diagnosed diseases than non-domesticated populations because they live longer, and so are less likely to die in the wild from predation or a lack of food or water.

Chapman's zebras are single-hoofed mammals that are a part of the odd-toed ungulate order. They differ from other zebras in that their stripes continue past their knees, and that they also have somewhat brown stripes in addition to the black and white stripes that are typically associated with zebras. The pastern is also not completely black on the lower half. Each zebra has its own unique stripe pattern that also includes shadow stripes. When foals are born, they have brown stripes, and in some cases, adults do not develop the black colouration on their hides and keep their brown stripes.

In the wild Chapman's zebra live on average to 25 years of age, however that can live to be up to 38 years of age in captivity. Males usually weigh 270–360 kg (600–800 lb) and stand at 120–130 cm (48–52 in) tall. Females weigh about 230–320 kg (500–700 lb) and stand as tall as the males. Foals weigh 25-50 kg (55-88 lb) at birth. Adult zebras can run at up to 56 kilometres per hour (35 miles per hour) and have strong eyesight and hearing which are essential evolutionary defence mechanisms.

Chapman's zebras have been observed to spend a large portion of their day feeding (approximately 50%), and primarily consume low-quality grasses found in savannas, grasslands, and shrublands, however they occasionally eat wild berries and other plants in order to increase protein intake.

While they show a preference for short grasses, unlike some other grazing animals they also eat long grasses and so play an important role by consuming the upper portion of long grass that has grown in the wet season to then allow for other animals to feed. Young foals are reliant on their mothers for sustenance for approximately the first 12 months of their lives as their teeth are unable to properly breakdown the tough grasses that the adults eat until the enamel has sufficiently worn away.

3-6-2019 LINYANTI CAMP, BOTSWANA - HELMETED GUINEA FOWL (Numida meleagris)

This is a gregarious species, forming flocks outside the breeding season typically of about 25 birds that also roost communally. Guineafowl are particularly well-suited to consuming massive quantities of ticks, which might otherwise spread Lyme disease. These birds are terrestrial, and prone to run rather than fly when alarmed. Like most gallinaceous birds, they have a short-lived, explosive flight and rely on gliding to cover extended distances. Helmeted guineafowl can walk 10 km and more in a day. Their bodies are well-suited for running and they are remarkably successful in maintaining dynamic stability over rough terrain at speed. They make loud harsh calls when disturbed.

Their diet consists of a variety of animal and plant foods. During the nonbreeding season, N. meleagris consumes corns, tubers, and seeds, particularly of agricultural weeds, as well as various agricultural crop spillage. During the breeding season, more than 80% of their diet may be invertebrates, particularly arthropods such as beetles. Guineafowl are equipped with strong claws and scratch in loose soil for food much like domestic chickens, although they seldom uproot growing plants in so doing. As with all of the Numididae, they have no spurs. They may live for up to 12 years in the wild.

Males often show aggression towards each other, and partake in aggressive fighting, which may leave other males bloodied and otherwise injured. They attempt to make themselves look more fearsome by raising their wings upwards from their sides and bristling their feathers across the length of their bodies, and they may also rush towards their opponent with a gaping beak. The nest is a well-hidden, generally unlined scrape, and a clutch is normally some 6 to 12 eggs, which the female incubates for 26 to 28 days. Nests containing larger numbers of eggs are generally believed to be the result of more than one hen using the nest; eggs are large, and an incubating bird could not realistically cover significantly more than a normal clutch.

The Helmeted Guineafowl, Numida meleagris, is a distinctive bird, easily recognized by its round body, small head, and striking plumage. Adults typically measure 53 to 58 cm in length and weigh around 1.3 kg. Their feathers are predominantly gray-black, speckled with white, providing them with a somewhat polka-dotted appearance.

One can identify the Helmeted Guineafowl by its bare head adorned with a bony knob, which can be dull yellow or reddish, and the surrounding skin may exhibit red, blue, or black colors. The wings and tail are short, contributing to a rather compact silhouette. Subspecies vary mainly in the size, shape, and color of the casque and facial wattles.

These birds favor warm, open environments with scattered shrubs and trees, such as savannas or farmlands, where they can forage and breed.

Native to Africa, mainly south of the Sahara, the Helmeted Guineafowl has been introduced to various regions worldwide, including the West Indies, North America, Colombia, Brazil, Australia, and Europe.

Helmeted Guineafowls are social creatures, forming flocks of about 25 individuals outside the breeding season. They are ground-dwelling birds, preferring to run rather than fly when threatened. Their flight is short and explosive, relying on gliding for longer distances. They are adept at running and can cover up to 10 km in a day. When alarmed, they emit loud, harsh calls.

Tuesday, 23 November 2021

22-11-2021 VILLALONGA, VALENCIA - HOUSE SPARROW (MALE) (Passer domesticus)

The house sparrow (Passer domesticus) is a member of the sparrow family Passeridae. This small bird typically measures around 16 cm (6.3 in) in length and weighs between 24–39.5 g (0.85–1.39 oz). The species exhibits sexual dimorphism, with females and young birds displaying pale brown and grey plumage, while males are characterized by more vibrant black, white, and brown markings.

Males can be identified by their bright black, white, and brown markings, with a distinctive black bib, white cheeks, and a grey crown. Females lack the striking head patterns of males and are predominantly buffish with softer coloration. Juveniles resemble adult females but are generally paler with less defined markings.

The house sparrow is highly adaptable and can thrive in both urban and rural environments. It is commonly found in close association with human habitation and avoids dense forests, grasslands, polar regions, and deserts far from human development.

Native to Europe, the Mediterranean Basin, and much of Asia, the house sparrow has been introduced to various regions worldwide, including parts of Australasia, Africa, and the Americas, making it one of the most widely distributed wild birds.

23-11-2021 MONTE CORONA, VALENCIA - COMMON HAIRY FIELD SPIDER (Neoscona subfusca)

https://www.inaturalist.org/taxa/320611-Neoscona-subfusca

23-11-2021 MONTE CORONA, VALENCIA - BLACK REDSTART (MALE) (Phoenicurus ochruros)

https://www.inaturalist.org/taxa/13000-Phoenicurus-ochruros

Monday, 22 November 2021

6-6-2019 MOREMI CAMP, BOTSWANA -BLACK HERON (Egretta ardesiaca)

The black heron is a medium-sized wading bird known for its striking black plumage and unique "canopy feeding" behavior, where it uses its wings to create shade to attract fish. It primarily inhabits wetlands across Africa, south of the Sahara, and other regions like Madagascar, nesting in colonies and feeding on fish, insects, and crustaceans. During breeding season, adults develop long, wispy plumes on their heads.

Appearance

Size: Approximately 42.5 to 66 cm (16.7 to 26.0 in) long, with a weight between 270 and 390 g (9.5–13.8 oz).

Plumage: Dark grey to black overall, with a slaty or bluish sheen.

Beak: Black.

Legs and Feet: Black legs, with yellow feet in adults.

Breeding Plumage: Adults grow long, black, shaggy crests on their heads.