The last wild Spix's Macaw and an Illiger's Macaw produced a hybrid

摘要

The one remaining wild male Spix's macaw (Cyanopsitta spixii) chose a female Illiger's macaw (Propyrrhura maracana) as a mate. Eggs were found in the nest used by the couple and one of them contained an embryo. Sequence variation in CHD1-Z and CHD1-W genes showed that it was a natural hybrid.