How many Western hemisphere warblers?

Photos by BarrytheBirder

Canada Warbler

(Wilsonia Canadensis)

There are approximately 115 to 120  species of New World warblers  (wood warblers) in the family Parulidae. These small, migratory birds are found exclusively in the Western Hemisphere, primarily north, Central and South America.   About half of the numerous species occur in in North America.

While they span the Americas, the highest diversity is found in Central America.  Most warbler species are medium to long-distance migrants, breeding in North America and wintering in the Neotropics.  

The Neotropics covers all of South America, Central America, the Caribbean Islands and south North America - specifically southern Mexico, the Yucatan Peninsula and southern Florida.   The whole region is one of the earth's eight major biogeographic realms, defined by unique plant and animal species.

Wilsons Warbler

Wilsonia pusilla

Orange-crowned Warbler

Vermivora celata

Common Yellowthroat

Geothlypis trichas

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BarrytheBirder