11.06.2013 Views

Aves da Pátria da Leari - Sociedade Brasileira de Ornitologia

Aves da Pátria da Leari - Sociedade Brasileira de Ornitologia

Aves da Pátria da Leari - Sociedade Brasileira de Ornitologia

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

100<br />

<strong>Aves</strong> <strong>da</strong> <strong>Pátria</strong> <strong>da</strong> <strong>Leari</strong><br />

than the narrower male wings. And the male call is a much higher tone than the more base tone of the female.<br />

Though this species primarily hunts for prey, which inclu<strong>de</strong>s armadillo, lizards, snakes on the ground, it also<br />

hunts in trees for animals like marmosets. These it captures in free fall flight or straight flight. Their reproductive<br />

period starts in April with the cleaning and construction of the nest and the chicks hatch in August. Two<br />

eggs, and the ol<strong>de</strong>r chick kills its younger sibling.<br />

Buteo brachyurus brachyurus (Vieillot, 1816)<br />

Short-tailed Hawk<br />

Similar enough as to sometimes be mistaken for B. albicau<strong>da</strong>tus, it can be differentiated by its smaller size and<br />

short, barred tail. The bird is not common in the Caatinga and sightings of it are rare. Also like the white-tailed<br />

hawk, it passes periods of being black.<br />

Rupornis magnirostris nattareri (Sclater & Salvin, 1869)<br />

Roadsi<strong>de</strong> Hawk<br />

This is the most common hawk species in Bahia and is well a<strong>da</strong>pted to the Caatinga though it also a<strong>da</strong>pts well<br />

to suburban and urban environments such as Jeremoabo. It has a wi<strong>de</strong> color variation of plumage that goes<br />

from light brown to <strong>da</strong>rk gray. Eye coloring also varies from being yellow or orange. The nest is in the form<br />

of a bowl and ma<strong>de</strong> of twigs. The chick’s first feathering is cream colored. The species is causing problems in<br />

outlying parts of Salvador because the birds attack people who pass too close to their nests. Measurements:<br />

Total length 340mm, wing.158mm, tail 144mm, tarsus 61mm, beak 27mm, weight 250g<br />

Buteogallus meridionalis meridionalis (Latham, 1790)<br />

Savanna Hawk<br />

This large hawk lives in open areas where it hunts for prey that consists of insects, snakes, lizards, iguanas,<br />

etc.. It is commonly seen hunting at ground level. The breast and abdomens of juveniles are yellow cut by<br />

black stripes. When flying, its long wings and bur<strong>de</strong>ned flight are characteristics by which to i<strong>de</strong>ntify the species.<br />

Geranospiza caerulescens gracilis (Temminick, 1821)<br />

Crane Hawk<br />

This hawk has a long, bluish-gray tail and long legs which are the perfect tool to seek out food in the cavities of<br />

bromeliads. We have seen the Yellow-hea<strong>de</strong>d caracara (Milvalgo chimachima) steel a frog that had just been<br />

caught by a G. caerulescens. It occurs in diverse places within the Caatinga but is not abun<strong>da</strong>nt.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!