The 'Rufous-vented Chachalaca', ''Ortalis ruficauda'', is a member of an ancient group of
birds of the
Cracidae family, which are related to the
Australasian
mound builders. It breeds in northeast
Colombia and northern
Venezuela where this bird is known as ''Guacharaca'' or ''Guacharo'' and in
Tobago where it is known as the Cocrico. It is also found on
Bequia and
Union Island in the
Grenadines where it may have been
introduced.
Rufous-vented Chachalaca is an arboreal species but is also found in more open dry scrubby habitats. It is less dependent on forest than larger members of the family. The twig nest is built low in a tree, and three or four large white
eggs are laid. The female incubates them alone.
These are medium-sized birds, similar in general appearance to
turkeys, with small heads, long strong legs and a long broad tail. They are typically 53-58cm long; the female weighs 540g and the larger male 640g. They have fairly dull
plumage, dark brown above and paler below. The head is grey, and the brown tail is tipped rufous or white depending on race.
Rufous-vented Chachalaca is a very noisy species. The male's call is a loud low ''ka-ka-rak-ka'', answered by the female's high-pitched ''watch-a-lak''. It is also a social bird, often seen in family groups. It walks along branches seeking the
fruit and seeds on which it feeds, or flies off with a flap and glide.
This species is one of the national birds of
Trinidad and Tobago and is featured on that county's
coat of arms along with the
Scarlet Ibis, the Ibis representing Trinidad and the Cocrico, Tobago. The Cocrico is currently a
pest in its native island of Tobago and agriculturists in Trinidad and Tobago are currently experimenting with ways of utilizing the animal to benefit humans and to maintain a healthy population in the wild.
References
★ Database entry includes justification for why this species is of least concern
★ Evans, Peter (1990) ''Birds of the Eastern Caribbean'', Macmillan, ISBN 0-333-52155-2
★
A Guide to the Birds of Trinidad and Tobago, , Richard, ffrench, Comstock Publishing, 1991,
★ ''Birds of Venezuela'' by Hilty, ISBN 0-7136-6418-5
External links
★
Stamps (for
Trinidad and Tobago,
Venezuela)
★
Rufous-vented Chachalaca videos on the Internet Bird Collection
★
Rufous-vented Chachalaca photo gallery VIREO