Magnolia Warbler

Setophaga magnolia

Breeding males are striking and unmistakable: especially look for white wing patch, head pattern, and thick black streaks on underparts. Females and immatures are less obvious and might be mistaken for Canada Warbler, but combination of gray head, yellow underparts, white wingbars, and at least some dark streaks on the flanks is distinctive. Always look for tail pattern from below: basal half is white, tip is black. Breeds in coniferous forests, especially with dense understory. Migrants and wintering birds can be found in any wooded area or edge. Winters primarily in Central America and the Caribbean.

Identification

This species is a moderately small New World warbler. It measures 11 to 13 cm (4.3 to 5.1 in) in length and spans 16 to 20 cm (6.3 to 7.9 in) across the wings. Body mass in adult birds can range from 6.6 to 12.6 g (0.23 to 0.44 oz), though weights have reportedly ranged up to 15 g (0.53 oz) prior to migration. Among standard measurements, the wing chord is 5.4 to 6.4 cm (2.1 to 2.5 in), the tail is 4.6 to 5.2 cm (1.8 to 2.0 in), the bill is 0.8 to 1 cm (0.31 to 0.39 in) and the tarsus is 1.7 to 1.85 cm (0.67 to 0.73 in). The magnolia warbler can be distinguished by its coloration. The breeding males often have white, gray, and black backs with yellow on the sides; yellow and black-striped stomachs; white, gray, and black foreheads and beaks; distinct black tails with white stripes on the underside; and defined white patches on their wings, called wing bars. Breeding females usually have the same type of coloration as the males, except that their colors are much duller. Immature warblers also resemble the same dull coloration of the females. The yellow and black-striped stomachs help one to distinguish the males from other similar birds, like the prairie warbler and Kirtland's warbler (which, however, have a breeding range to the south and east of the magnolia warbler's).

Taxonomy

Genus: Setophaga; Family: Parulidae; Order: Passeriformes.

Scientific name
Setophaga magnolia
Authority
(Wilson, A, 1811)
Order
Passeriformes
Family
Parulidae
Genus
Setophaga

Range and habitat

The magnolia warbler is found in the northern parts of some Midwestern states and the very northeastern parts of the US, with states such as Minnesota and Wisconsin comprising its southernmost boundaries. However, it is mostly found across the northern parts of Canada, such as in Saskatchewan, Manitoba, Ontario, and Quebec. During the winter, the warbler migrates through the eastern half of the United States to southern Mexico and Central America. The warbler breeds in dense forests, where it will most likely be found among the branches of young, densely packed, coniferous trees. The magnolia warbler migrates to the warmer south in the winter, wintering in southeastern Mexico, Panama, and parts of the Caribbean. In migration it passes through the eastern part of the United States as far west as Oklahoma and Kansas. During migration season, the magnolia warbler can be found in various types of woodlands.

Breeding range
NA : c Canada to se Canada and ne and nc USA
Non-breeding range
MA and West Indies
Migration
Complete migrants

Behavior

Migration pattern: Complete migrants.

Conservation

Population trend: rising.

Population trend
rising

Photos

Distribution

Bird Calls

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Magnolia Warbler | BirdLens