Saturday, 30 December 2017
Friday, 29 December 2017
25-12-2016 ADOR CAMPO, VALENCIA - LITTLE OWL (Athene noctua)
This owl usually perches in an elevated position ready to swoop down on any small creature it notices. It feeds on prey such as insects and earthworms, as well as small vertebrates including amphibians, reptiles, birds and mammals. It may pursue prey on the ground and it caches surplus food in holes or other hiding places. A study of the pellets of indigestible material that the birds regurgitate found mammals formed 20 to 50% of the diet and insects 24 to 49%. Mammals taken included mice, rats, voles, shrews, moles and rabbits. The birds were mostly taken during the breeding season and were often fledglings, and including the chicks of game birds. The insects included Diptera, Dermaptera, Coleoptera, Lepidoptera and Hymenoptera. Some vegetable matter (up to 5%) was included in the diet and may have been ingested incidentally.
The little owl is territorial, the male normally remaining in one territory for life. However, the boundaries may expand and contract, being largest in the courtship season in spring. The home range, in which the bird actually hunts for food, varies with the type of habitat and time of year. Little owls with home-ranges that incorporate a high diversity of habitats are much smaller (< 2 ha) than those which breed in monotonous farmland (with home-ranges over 12 ha). Larger home-ranges result in increased flight activity, longer foraging trips and fewer nest visits.
If a male intrudes into the territory of another, the occupier approaches and emits its territorial calls. If the intruder persists, the occupier flies at him aggressively. If this is unsuccessful, the occupier repeats the attack, this time trying to make contact with his claws. In retreat, an owl often drops to the ground and makes a low-level escape. The territory is more actively defended against a strange male as compared to a known male from a neighbouring territory; it has been shown that the little owl can recognise familiar birds by voice.
The little owl is partly diurnal and often perches boldly and prominently during the day. If living in an area with a large amount of human activity, little owls may grow used to humans and will remain on their perch, often in full view, while people are around. The little owl has a life expectancy of about 16 years. However, many birds do not reach maturity; severe winters can take their toll and some birds are killed by road vehicles at night, so the average lifespan may be on the order of 3 years.
25-12-2016 ADOR CAMPO, VALENCIA - SARDINIAN WARBLER (MALE) (Sylvia melanocephala)
The Sardinian warbler (Curruca melanocephala ) is a common and widespread typical warbler from the Mediterranean region. Like most Curruca species, it has distinct male and female plumages. The adult male has a grey back, whitish underparts, black head, white throat and red eyes. Plumages are somewhat variable even in the same locality, with the intensity of a reddish hue on upper- and/or underside that varies from absent to (in some subspecies) pronounced. The female is mainly brown above and buff below, with a grey head. The Sardinian warbler's song is fast and rattling, and is very characteristic of the Mediterranean areas where this bird breeds.
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It breeds in the southernmost areas of Europe and just into Asia in Turkey and the eastern end of the Mediterranean. This small passerine bird, unlike most "warblers", is not particularly migratory, but some birds winter in north Africa, and it occurs as a vagrant well away from the breeding range, as far as Great Britain.
This is a bird of open country and cultivation, with bushes for nesting. The nest is built in low shrub or brambles, and 3-6 eggs are laid. Like most "warblers", it is insectivorous, but will also take berries and other soft fruit.
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Slender warbler with long tail, short wings and pointed bill. Restless and alert with frequently raised crown feathers and dark eye framed in red. Male with black head, white throat, greyish upperparts and off-white underparts. Female less striking, with grey head grey-brown upperparts, distinct buff flanks and paler belly. Both sexes with white sides and corners to tail. Rarely sits exposed, and usually betrays itself by it's frequently used scolding call. Often just glimpsed when it dives into a bush, spreading it's tail and showing the white markings.
Scolding call a machinegun-like, short and harsh rattle. Usually consisting of 2-5 notes with some variation in timbre and delivery. Song a stream of varied, short notes, constantly interspersed with variations of the scolding call. Phrases 2-5 sec. long. Easily confused with several other sylvias, especially in the eastern part of the Mediterranean. Rattling sound (in both song and call) differs from most other congeners by being considerably harder and more "smacking". Dartford Warbler most similar, but usually betrays itself by it's characteristic and frequently used contact call (also interspersed when singing).
3-2-2017 ALBUFERA, VALENCIA - EURASIAN HOOPOE (Upupa epops)
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A summer bird, uncommon in some areas and fairly common in others in warmer regions, wintering in Africa and the Iberian Peninsula. It occurs in semi-open habitats such as heaths, farmland, orchards and herbaceous pastures where it feeds on the ground, probing with its long bill for insects. The long crest is usually kept closed but is often unfurled just after landing on the ground. It has a fast and fairly direct flight with a fairly deep wingbeat. It is unlikely to be confused with other birds but can be compared with the Eurasian Jay, the only other bird relatively similar in size and appearance to be seen in Europe.
Wednesday, 27 December 2017
Saturday, 23 December 2017
Friday, 22 December 2017
6-10-2015 VILLALONGA RESERVOIR - GREEN SANDPIPER (Tringa ochropus)
The green sandpiper represents an ancient lineage of the genus Tringa; its only close living relative is the solitary sandpiper (T. solitaria). They both have brown wings with little light dots and a delicate but contrasting neck and chest pattern. In addition, both species nest in trees, unlike most other scolopacids.
Given its basal position in Tringa, it is fairly unsurprising that suspected cases of hybridisation between this species and the common sandpiper (A. hypoleucos) of the sister genus Actitis have been reported.
The green sandpiper (Tringa ochropus) is a small wader (shorebird) of the Old World.
This species is a somewhat plump wader with a dark greenish-brown back and wings, greyish head and breast and otherwise white underparts. The back is spotted white to varying extents, being maximal in the breeding adult, and less in winter and young birds. The legs and short bill are both dark green.
It is conspicuous and characteristically patterned in flight, with the wings dark above and below and a brilliant white rump. The latter feature reliably distinguishes it from the slightly smaller but otherwise very similar solitary sandpiper (T. solitaria) of North America.
In flight it has a characteristic three-note whistle.
22-12-2017 LA FONT EN CARROS, VALENCIA - EUROPEAN GOLDFINCH (Carduelis carduelis)
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The European goldfinch or simply the goldfinch (Carduelis carduelis) is a small passerine bird in the finch family that is native to Europe, North Africa and western and central Asia. It has been introduced to other areas, including Australia, New Zealand and Uruguay.
The breeding male has a red face with black markings around the eyes, and a black-and-white head. The back and flanks are buff or chestnut brown. The black wings have a broad yellow bar. The tail is black and the rump is white. Males and females are very similar, but females have a slightly smaller red area on the face.
The goldfinch is often depicted in Italian Renaissance paintings of the Madonna and Child.
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The average European goldfinch is 12–13 cm (4.7–5.1 in) long with a wingspan of 21–25 cm (8.3–9.8 in) and a weight of 14 to 19 g (0.49 to 0.67 oz). The sexes are broadly similar, with a red face, black and white head, warm brown upper parts, white underparts with buff flanks and breast patches, and black and yellow wings.
On closer inspection, male European goldfinches can often be distinguished by a larger, darker red mask that extends just behind the eye. The shoulder feathers are black, whereas they are brown on the female. In females, the red face does not extend past the eye. The ivory-coloured bill is long and pointed, and the tail is forked. Goldfinches in breeding condition have a white bill, with a greyish or blackish mark at the tip for the rest of the year. Juveniles have a plain head and a greyer back but are unmistakable due to the yellow wing stripe. Birds in central Asia (the caniceps group) have a plain grey head behind the red face, lacking the black and white head pattern of European and western Asian birds. Adults moult after the breeding season, with some individuals beginning in July and others not completing their moult until November. After moult birds appear less colourful, until the tips of the newly grown feathers wear away.
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The song is a pleasant silvery twittering. The call is a melodic tickeLIT, and the song is a pleasant tinkling medley of trills and twitters, but always including the tri-syllabic call phrase or a teLLIT-teLLIT-teLLIT.
The European goldfinch is native to Europe, North Africa, and western and central Asia. It is found in open, partially wooded lowlands and is a resident in the milder west of its range, but migrates from colder regions. It will also make local movements, even in the west, to escape bad weather. It has been introduced to many areas of the world. It was introduced to Bermuda, Canada, the United States, Mexico, Peru, Argentina, Chile, the Falkland Islands, Uruguay, Brazil, South Africa, Australia, and New Zealand in the 19th century, and their populations quickly increased and their range expanded greatly. In Australia, they now occur from Brisbane to the Eyre Peninsula, and are also spread throughout New Zealand. In the United States, they have become established in the western Great Lakes region.
22-12-2017 ADOR CAMPO, VALENCIA - EUROPEAN GOLDFINCH (Carduelis carduelis)
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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.
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