High Quality Content by WIKIPEDIA articles! Chachalacas are one of the groups of cracid birds. They all belong into the genus Ortalis. They were formerly united with the similar-looking guans into a subfamily, but are probably closer to the curassows. The generic name is derived from the Greek word , meaning "pullet" or "domestic hen." The common name is an onomatopoeia for the four-noted cackle of the Plain Chachalaca. Mitochondrial and nuclear DNA sequence data tentatively suggests that the chachalacas emerged as a distinct lineage during the Oligocene, somewhere around 40-20 mya, possibly being the first lineage of modern cracids to evolve; this does agree with the known fossil record - including indeterminate, cracid-like birds - which very cautiously favors a north-to-south expansion of the family.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.