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Cerulean Warbler Dendroica cerulea


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Cerulean Warbler
credit: mdf/CCSA

© Lang Elliot/ (audio)

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Family: Parulidae, Wood Warblers view all from this family

Description ADULT MALE Mostly bright blue above and white below, with a clear divide between the two. Note the two white wing bars, white throat, and dark streaks on flanks. ADULT FEMALE Has blue elements of male's plumage mostly replaced by greenish blue; wings are rather dark, but with two bold white wing bars. Underparts, including face, are pale, flushed yellowish on face, throat, and flanks, and faintly streaked on flanks too. Note the pale supercilium. IMMATURE Similar to adult female, but immature female is more yellow overall.

Dimensions Length: 4 1/2" (11 cm)

Habitat Rare and declining summer visitor (mainly May-Sep) to mature, undisturbed mixed deciduous forests with a dense canopy and limited understory; winters in South America. Badly affected by habitat destruction and degradation, here and in its Andean winter quarters.

Observation Tips Best located by song.

Range Plains, New England, Eastern Canada, Florida, Mid-Atlantic, Southeast, Great Lakes, California, Texas

Voice Song is a series of thin whistles, ending in an upslurred trill; call is a soft tsup.

Discussion Endangered, colorful warbler. Favored treetop haunts make it hard to see. Sexes are similar.