Black-tailed tityra
| Black-tailed tityra | |
|---|---|
.JPG) |
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| A male black-tailed tityra at Manaus, Amazonas state, Brazil | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Tityridae (see text) |
| Genus: | Tityra |
| Species: | T. cayana |
| Binomial name | |
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Tityra cayana (Linnaeus, 1766) |
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| Synonyms | |
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Lanius cayanus Linnaeus, 1766 |
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Lanius cayanus Linnaeus, 1766
Tityra braziliensis (Swainson, 1837)
The black-tailed tityra (Tityra cayana) is a medium-sized passerine bird of tropical South America. The tityras have been placed in the cotinga or the tyrant flycatcher families (Cotingidae and Tyrannidae) by various authors. But the weight of evidence strongly suggest they and their closest relatives are better separated as Tityridae; the AOU for example advocates this separation.
This is a short-tailed robust bird with a long hook-tipped bill; like other tityras it has a peculiar vestigial ninth primary feather. The adult black-tailed tityra is about 20–22 centimetres (7.9–8.7 in) long and weighs about 60–70 grams (2.1–2.5 oz). The male is dull white above and white below. The rectrices, the primary and secondary remiges and a cap extending to below the eyes are black; the tertiary remiges are silvery grey. Females have dark brown rather than black on wings and tail and some brown pattern on head, back and underside. In both sexes there is a patch of rosy-red bare skin around the eye, extending to the bill which is red-based with a black tip. The iris and feet are dark. The juvenile plumage is unknown.
This species has a buzzing short call rendered as ed, rek, urd or wenk. A double beeza-buzza and triple weenk, weenk, weenk are also given. It more frequently calls in flight than when perched.
Two subspecies are recognized; they are sometimes treated as distinct species but widely intergrade where their ranges meet:
This bird is found as a year-round resident in forest edges, second growth and plantation shade trees in the pantanal and cerrado as well as in terra firme and várzea forest, usually below 500 metres (1,600 ft) but occasionally as far up as 1,100 metres (3,600 ft) ASL. Black-tailed tityras are most commonly seen in pairs, or, less frequently, single or in small groups; they are intolerant of other birds and will try to chase them away. They are often seen perched conspicuosly as they feed on medium-sized fruits. Food is gleaned from vegetation or picked off in mid-hover. While some large insects are caught, these are mainly fed to young birds; adults are predominantly frugivores and locally important dispersers of such species as the Meliaceae Cabralea canjerana. This species rarely attends mixed-species feeding flocks even when provisioning young, preferring to forage for insects on its own high up in the trees.
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Wikipedia