This article is one of a series providing information about endemism among birds in the world's various zoogeographic zones. For an overview of this subject see Endemism in birds.
No bird families are endemic to the region; however, the following genera are endemic:
In addition in the following genera, high proportions of the member species are endemic to the region:
Birdlife International has defined a number of Endemic Bird Areas and Secondary Areas in this region.
The following is a list of bird species endemic to the region of Mexico south to Nicaragua (M indicates a species endemic to Mexico; G, Guatemala).
ENThe following is a list of species endemic to the region as breeding species:
The following is a list of species endemic to the region as non-breeding species:
The following restricted-range species are also found in the region:
The following are species which are near-endemics that also occur in the southwestern United States:
The following are species which are near-endemics that also occur south to Costa Rica:
The following extinct species were formerly endemic: