There are birds like the crested curassow, hummingbird, great kiskadee and cardinal. One threatened bird species in the park is the great curassow ("Crax rubra"). The habitat preference of the wattled curassow is not well studied either. It is often decorated as well with a tuft of curassow feathers. From captivity, hybrids with the blue-billed curassow ("Crax alberti") are known. The latter would in time evolve into the blue-billed curassow. A captive stock exists and by curassow standards is even reasonably plentiful. The helmeted curassow is listed on Appendix II of CITES. The great curassow is the most northerly "Crax" species. The crestless curassow ("Mitu tomentosum") is a species of bird in the family Cracidae. An adult female curassow was rediscovered in 1951, in the coastal forests of Alagoas. The Alagoas curassow ("Mitu mitu") is a glossy-black, pheasant-like bird. The distinct coloration separates "M.mitu" as its own species distinct from other curassow species. The Alagoas curassow is known to consume a diet of fruits and nuts. The Alagoas curassow became extinct in the wild due to deforestation and hunting.