Brown Jay
Cyanocorax morio
Well-named: this distinctive large jay is the color of dark chocolate with paler grayish belly. Sexes alike; juveniles similar to adults but with yellow legs, bill, and eyering. Long tail and floppy flight with deep wingbeats. Common and conspicuous in Mexico and Central America, with very limited range in U.S. Found in small groups in wooded habitats, often near water. Sometimes seen at bird feeders. Listen for very loud calls "kleer, Kleer, kleer."
识别特征
Brown jays vary in plumage geographically: there are two main groups. Northern birds are almost completely dark brown, with lighter brown on the underparts. Southern birds are white-bellied and have bright white tips to the outer tail feathers. The intergrade zone is in Veracruz, Mexico.<p>Adults in both populations have black bills, legs, and feet. Immatures have yellow bare parts, including yellow eye-rings.<p>The voice is a loud but low-pitched pee-ah call and is often modified to suit its situation or mood.
分类信息
- 学名
- Cyanocorax morio
- 命名信息
- (Wagler, 1829)
- 目
- Passeriformes
- 科
- Corvidae
- 属
- Cyanocorax
分布与栖息地
It occurs from Mexico south into Central America on the Gulf slope. The northernmost extent of the bird is in the Rio Grande Valley of Texas. In Central America, the brown jay is not found in El Salvador.
- 迁徙
- Resident species
行为
Food is sought largely in trees but brown jays also take some food from the ground. They are rather indiscriminate feeders. Insects and a wide range of other invertebrates are taken, also lizards, nectar, and fruit (e.g. that of Trophis racemosa in the Moraceae). Though they will take eggs and nestlings, they appear not to if there is plenty of other food available.<p>The nest is built in a tree or large shrub with both sexes helping in construction. There are normally three eggs laid but six is not unusual. Incubation is between 18 and 20 days. Only the female broods but the male feeds her while doing so.<p>Sometimes the offspring from a previous season will help in raising the chicks. If a helper bird returns with food, it will give it to one of the resident parents to feed the chicks.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Mountain Plover
Anarhynchus montanus
Medium-sized, plain buffy plover that favors flat open areas with little or no vegetation. Plain whitish underparts with no breast band. Look for black forehead and white eyebrow in breeding plumage. Nonbreeding birds have a plainer face. Also note slender dark bill and upright posture. Rare and local. Rather poorly-named; essentially never seen in mountainous regions. Breeds on shortgrass prairies, often with areas of bare ground. Winters in flocks in barren fields, from the southwestern U.S. to central Mexico.
Northern Barred-Woodcreeper
Dendrocolaptes sanctithomae
Uncommon, rather large woodcreeper of humid tropical forest; infrequently seen away from ant swarms. Found singly or in twos and threes, often with Tawny-winged and Ruddy Woodcreepers at army ant swarms. Perches upright on trunks at all levels; often rather sluggish. Often looks dark and plain overall, with dark mask and pale base to stout bill. Dark barring on head and body visible with good views. Loud whistled song given mainly around dawn, a whistled “too’ih tooh’ih.”
Gray-headed Dove
Leptotila plumbeiceps
Retiring, terrestrial dove of humid tropical forest in the lowlands. Heard more frequently than seen. Like other members of the genus, it can be found walking quietly on shady roadsides and trails, especially early and late in the day. It often flushes explosively and flies to a low perch in the understory. Told from White-tipped Dove and Gray-chested Dove by blue-gray crown and hindneck. In flight, all Leptotila doves show white tail corners and rusty under the wings.
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