MacGillivray's warbler

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MacGillivray's warbler
Geothlypis tolmiei Hungry Horse MT 1, crop.jpg
male
Macgillivrays.JPG
female
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Parulidae
Genus: Geothlypis
Species: G. tolmiei
Binomial name
Geothlypis tolmiei
(Townsend, 1839)
Oporornis tolmiei map.svg
Range[2]

     breeding      overwintering

Synonyms

Oporornis tolmiei

The MacGillivray's warbler (Geothlypis tolmiei) is a species of New World warbler. These birds are sluggish and heavy warblers, preferring to spend most of their time on, or near the ground, except when singing.

A MacGillivray's warbler pair by Bruce Horsfall

The MacGillivray's warbler was named by John James Audubon in honor of Scottish ornithologist William MacGillivray, although the proper credit to its discovery goes to John Kirk Townsend. The scientific name "tolmiei" was given in honor of William Fraser Tolmie.

Adult MacGillivray's warblers are approximately 13 centimetres (5.1 in) in length. They are an olive-green color on their upperparts and dull yellow below. Males have black heads and breasts, while females and immature birds have drab light gray heads; both males and females have broken white eye-rings. MacGillivray's warblers are very similar to their eastern counterpart, the mourning warbler, the primary difference between the two species being the mourning warbler's lack of an eye-ring.

MacGillivray's warblers are migratory and spend their summers in temperate forests in the western United States, and in boreal forests of west Canada. In autumn, these birds migrate to Central America, where they stay in temperate shrublands for the winter.

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