Cayenne Jay
Cyanocorax cayanus
Large jay of humid forest and edges including savanna and premontane forest in the tepui region. Combination of size and black-and-white plumage unlike any other species in range. Moves through forest in noisy groups but can be hard to see well. Sometimes accompanies foraging flocks of oropendolas and caciques, feeding on flowers and fruit. Calls include a variety of whistles and grunts.
识别特征
The cayenne jay is a medium sized jay, roughly 33 cm (13 in) long. It has a generally purplish back with white undersides. Its back and tail are a purplish-brown, with a white tail-tip. Its wings fade from the purplish-brown of the back to a darker purplish-blue. Its neck is a sooty grey, fading to white on its undersides. Its face and throat are generally black, with white spots above and below the eye, and along the malar. The edges of these white spots fade to a mauve colour. It has a short black crest on the top of its head. Its beak has a black beak and tarsus, with light blue or white irises. Juveniles are overall duller in colour. The tip of the tail is less white and more violet, and the white spots above and below the eyes are smaller or missing altogether.<p>Males and females are generally the same size, with females weighing 174.6 g (6.16 oz) and males 174.8 g (6.17 oz). The wing length of females averages 159.8 mm (6.29 in) and males average 159.5 mm (6.28 in). For both sexes, the average tail length is 140 mm (5.5 in), the average bill length is 36 mm (1.4 in), and the average tarsus length is 46 mm (1.8 in).
分类信息
- 学名
- Cyanocorax cayanus
- 命名信息
- (Linnaeus, 1766)
- 目
- Passeriformes
- 科
- Corvidae
- 属
- Cyanocorax
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类

Green-backed Honeybird
Prodotiscus zambesiae
Small and incredibly nondescript honeyguide. Note the small, sharp bill and the white outer tail feathers. Found along forest edge and in broadleaf woodland, especially miombo. Generally uncommon and inconspicuous, though it will join mixed flocks with other bird species. Vocalizations are a quick series of “jyet” notes and an explosive “skyeat” given in flight. Very similar to Wahlberg’s Honeyguide, but has an olive-green rather than brown back. Separated from other honeyguides by its small bill.

Coscoroba Swan
Coscoroba coscoroba
A distinctive white swan with a bright, rather ducklike bill. The black wingtips are usually concealed when swimming. Most likely to be confused with white domestic waterfowl. Fairly common but sometimes local on lakes, slow-moving rivers, wetlands with open water, estuaries, and inshore coastal waters. Often in groups and associates readily with Black-necked Swan. Cygnets are dirty brownish with a black face mask, but young look much like adults within a month or two after hatching. Name comes from slightly gruff, honking “kós-ko roa” call.

Plain Pigeon
Patagioenas inornata
A large pale pigeon of woodlands and forest edges; often found perching high in trees. Its ruddy shoulders and unbanded tail readily separate it from the similar Ring-tailed Pigeon. When perched, note the whispy whitish leading edge to wing, seen as a bar on upperwing in flight, that is suggestive of White-winged Dove, but that species has brighter white wing markings and is smaller. Scaly-naped and White-crowned Pigeons are much darker. Call is a soft, deep “HOOO-hoo-hoooo” and variations thereof but never similar to “oooOOO-hooo” of Ring-tailed Pigeon.
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