Souimanga de Palawan

Cinnyris aurora

Minuscule et actif souimanga des lisières de forêt et des bois ouverts, endémique de Palawan. Le mâle est gris-olive dessus, avec une gorge bleu-noir irisé étendue, une tache pectorale orange et un ventre jaune pâle. La femelle est olive dessus, avec un sourcil et des parties inférieures jaune vif ; à comparer avec la femelle du Souimanga adorable, plus petite et plus terne, ainsi qu'avec le Souimanga à gorge brune, plus grand et plus terne. Chez les deux sexes, noter les bords blancs de la queue qui s'évasent en vol. Il émet un chant vif et pétillant et des notes "weet?" ascendantes. Autrefois regroupé avec d'autres espèces étroitement apparentées sous le nom de "Souimanga à dos olive".

Identification

The Palawan sunbird is 10–11.4 cm (3.9–4.5 in) in length. The male weighs 6.7–11.9 g (0.24–0.42 oz), the female 6–10 g (0.21–0.35 oz). The species is sexual dimorphic. The male is olive above, the remiges are black with green edging and the black tail has a white tip. The throat, side of neck, throat and breast are blue-black iridescent. The breast has a broad bright orange band. The rest of the underparts are yellow. The iris is dark brown, the bill and legs are black. The female lacks the iridescent throat. It is greenish-olive above and has a yellow supercilium.

Taxonomie

The Palawan sunbird was formally described in 1878 by the Scottish ornithologist, the Marquess of Tweeddale based on a specimen collected in Puerto Princesa on the island of Palawan in the Philippines. He coined the binomial name Cyrtostomus aurora. The specific epithet is Latin meaning "dawn" or "east". The Palawan sunbird is now placed in the genus Cinnyris that was introduced in 1816 by the French naturalist Georges Cuvier. It was formerly considered as a subspecies of the olive-backed sunbird (renamed the garden sunbird) (Cinnyris jugularis) but is now treated as a separate species based on the colour of the breast plumage. The species is monotypic: no subspecies are recognised.

Nom scientifique
Cinnyris aurora
Autorité
(Tweeddale, 1878)
Ordre
Passériformes
Famille
Nectariniidés
Genre
Cinnyris

Répartition et habitat

The Palawan sunbird is found on the islands of the Palawan group in the Philippines. It occupies various habitats including the forest edge and open scrub.

Comportement

The elongated hanging nest is 30–60 cm (12–24 in) in length and has a hooded side entrance. It is usually placed between 0.5 and 1.5 m (1 ft 8 in and 4 ft 11 in) above the ground but can occasionally be as high as 10 m (33 ft). It is constructed by the female using grass, bark, moss, lichens, leaf fragments, vegetable fibres and spider webs. The clutch of 1–3 eggs is incubated by the female. The eggs hatch after 11–16 days and the young are then fed by both parents. The chicks fledge after 13–16 days. Normally several broods are raised each year.<p>It forages either singly or in small groups. The diet consists of small insects, spiders, nectar and small fruits.

Photos

Distribution

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Souimanga de Palawan | BirdLens