The Double Yellow-headed Amazon, also called just the Yellow-headed Amazon, is native to Mexico and northern Central America.
It is sometimes considered a subspecies of the Yellow-crowned group, as Amazona ochrocephala oratrix, together with the Yellow-naped Amazons.
The name Double Yellow-headed is applied particularly to those with yellow face and crown plus a yellow nape. The bill is light horn-coloured.
Adults have more yellow plumage than juveniles.
The Tres Marias Amazon, Amazona oratrix tresmariae /(Amazona ochrocephala tresmariae), is native to the Tres Marias Islands off the west of Mexico.
It is similar in appearance but often has more yellow on the bib than the nominal subspecies.
Another subspecies, not shown, from Belize (A. o. belizensis), often has just a yellow crown, leading to confusion with the Yellow-crowned Amazon,
and a further subspecies, from Honduras (A. o. hondurensis), has only yellow crown and nape, leading to confusion with the local Yellow-naped subspecies.