Yellow-bellied Elaenia
Elaenia flavogaster
Rather bulky small flycatcher, widespread in tropical lowlands. Fairly common in overgrown brushy clearings, savannas, and other semi-open areas with scattered bushes. Looks like many other small flycatchers, and where multiple species of elaenias occur it is often not possible to identify birds to species. On Yellow-bellied, note its spiky, white-based crest (rarely held flattened), burry drawled call, whitish wingbars, and pale yellow belly; does not flick its wings or tail.
识别特征
Adults are 16.5 cm (6.5 in) long and weigh 24 g (0.85 oz). They have olive-brown upperparts, a white eye ring, a bushy divided crest and a white crown patch in the parting. The throat is pale and the breast greyish, with pale yellow lower underparts. The call is a nasal breeer, and the song is a wheezing zhu-zhee-zhu-zhee.
分类信息
- 学名
- Elaenia flavogaster
- 命名信息
- (Thunberg, 1822)
- 目
- Passeriformes
- 科
- Tyrannidae
- 属
- Elaenia
分布与栖息地
This is a common bird in semi-open woodland, scrub, gardens and cultivation. The yellow-bellied elaenia is a noisy and conspicuous bird which feeds on berries and insects. The latter are usually caught from mid-air after the bird sallies from a perch, and sometimes picked up from plants. The species will also join mixed-species feeding flocks on occasion, typically staying quite some distance up in the trees.<p>It makes a cup nest and lays two cream eggs with reddish blotches at the larger end. The female incubates for 16 days, with about the same period to fledging. Omnivorous mammals as small as the common marmoset (Callithrix jacchus) will eagerly plunder yellow-bellied elaenia nests in the undergrowth—perhaps more often during the dry season when fruits are scarce—despite the birds' attempts to defend their offspring.
- 迁徙
- Resident species
保护状况
The yellow-bellied elaenia is a common and wide-ranging bird, not considered threatened by the IUCN.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Laughing Falcon
Herpetotheres cachinnans
Spectacular and distinctive raptor of tropical lowlands, often seen perched on prominent bare snags, from which it hunts for snakes. Occurs in forest and also in open country with scattered trees. Note the creamy head and underparts with a broad black "bandit mask." Does not soar, and flies with hurried, stiff wingbeats, when rusty patches show on the wings. Named for its far-carrying laughing calls.
Principe Speirops
Zosterops leucophaeus
A bulky, mostly pale white-eye with a whitish head and belly and gray-brown wings and tail. Small to large groups join mixed flocks in forest and plantations throughout Príncipe. Calls include a high-pitched chittering, uttered as a group, and a repeated “tsit-tit-cher-it-it” song. Principe Speirops may join the same flocks as Principe White-eye, which is slightly smaller and much darker, lacking the distinctive white head and underparts.
Berylline Hummingbird
Saucerottia beryllina
Medium-sized hummingbird, usually fairly common in foothills. Favors oak woodlands, adjacent brushy thickets, and shade-coffee plantations, in both drier and more humid situations. Feeds at all levels and often rather aggressively chases off most other hummingbirds. Note the bright rusty wing patch and rusty tail (which often has purple and bronze highlights). Lower bill is red, but is often hard to see. Sexes similar, but female has duller, less buffy belly; birds from Chiapas south have a green belly.
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