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Chesnut-headed Oropendola


Chesnut-headed Oropendola
Photo Information
Copyright: Luis Vargas (Chiza) Gold Star Critiquer/Gold Note Writer [C: 133 W: 0 N: 474] (5351)
Genre: Animals
Medium: Color
Date Taken: 2009-05-10
Categories: Birds
Exposure: f/4.5, 1/80 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2009-05-12 18:48
Viewed: 4904
Points: 4
[Note Guidelines] Photographer's Note [Spanish]
Chestnut-headed Oropendola
From Wikipedia
Psarocolius waglerii

Conservation status

Least Concern (IUCN 3.1)
Scientific classification
Kingdom: Animalia

Phylum: Chordata

Class: Aves

Subclass: Neornithes

Infraclass: Neognathae

Superorder: Neoaves

Order: Passeriformes

Suborder: Passeri

Infraorder: Passerida

Superfamily: Passeroidea

Family: Icteridae

Genus: Psarocolius

Species: P. wagleri


Binomial name
Psarocolius wagleri
(J E Gray, 1845)
Synonyms
Psarocolius waglerii (lapsus)

The Chestnut-headed Oropendola (Psarocolius wagleri) is a New World tropical icterid bird. The scientific name of the species commemorates Johann Georg Wagler, who established Psarocolius, the oropendola genus.


Description
The male is 35 cm long and weighs 225 g; the smaller female is 28 cm long and weighs 125 g. The wings are very long. Adult males are mainly black with a chestnut head and rump and a tail which is bright yellow apart from two dark central feathers. The iris is blue and the long bill is whitish. Females are similar, but smaller and duller than males. Young birds are duller than adults and have brown eyes. The populations south of an area around the border of Honduras and Nicaragua are sometimes separated as a subspecies P. w. ridgwayi, but the separation of this form has been questioned.

The distinctive songs of the male include a gurgle followed by a crash guu-guu-PHRRRRTTT. Both sexes have loud chek and chuk calls.

Range and ecology
It is a resident breeder in the Caribbean coastal lowlands from southern Mexico to central Costa Rica, both slopes of southern Costa Rica and Panama, and the Pacific lowlands of Colombia and northeastern Ecuador. Though it usually stays below 1,000 meters ASL, it has also been recorded as much as 1,300 m ASL – for example in the Serranía de las Quinchas of Colombia –; it may in fact be more common at such high altitudes at particular times or in particular places, but its altitudinal movements are insufficiently understood[1]. The species is common across its large range and not considered threatened by the IUCN[2].

The Chestnut-headed Oropendola inhabits forest canopy, edges and old plantations. It is a quite common bird in parts of its range, seen in small flocks foraging in trees for large insects, fruit and berries.

It is a colonial breeder which builds a hanging woven nest of fibres and vines, 60-100 cm long, high in a tree. There may be 40-50 females and only 4-5 males in a colony. The female lays two dark-marked pale blue eggs which hatch in 17 days and fledge in 30. Botflies (Oestridae) are the main cause of nestling mortality, but brood parasitism by Giant Cowbirds (Molothrus oryzivorus) also occurs, and the young cowbirds will feed on the fly larvae.

zetu, retlash has marked this note useful
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Discussions
ThreadThread Starter Messages Updated
To retlash: Hola MichaelChiza 1 05-16 08:01
To aniruddhahd: Hi AniruddhaChiza 1 05-15 18:15
To zetu: Hola RazvanChiza 1 05-15 18:14
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Critiques [Translate]

  • Great 
  • zetu Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 967 W: 26 N: 3888] (16941)
  • [2009-05-13 0:33]
  • [+]

Hello Luis
Nice capture, I like details, POV and colors.
Regards
Razvan

wow such a superb bird, never seen before! tfs!

Hola Luiz,
Excellent shot with nice pov and composition. Very
informative note.
Regards,
Michael

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