Breeding Location:
Mountain canyons
Breeding Type:
Monogamous, Solitary nester
Breeding Population:
Accidental in Arizona, Texas, Uncommon throughout range
Egg Color:
White
Number of Eggs:
3
Incubation Days:
Egg Incubator:
Female
Nest Material:
Grass, pine needles, moss
Migration:
Altitudinal movements
Overview
Crescent-chested Warbler: Small warbler, gray to blue-gray head, wings, tail. Yellow-green back, breast, throat are yellow with a rufous-brown spot or crescent on upper breast; belly and sides are white to gray. Head has white eyebrows that widen towards nape and partial lower eye-ring.
Range and Habitat
Crescent-chested Warbler: Resident of montaine oak-pine and mixed softwood forests of Mexico to Central America. Seasonal migration to lower elevations within mountain ranges has been documented. Very few records in the United States from southeastern Arizona and in the lower Rio Grande Valley, Texas.
Breeding and Nesting
Crescent-chested Warbler: Three white egg are laid in a cup nest built on or near the ground in mountain canyons, usually along a ravine or bank. Nest composed of grass, pine needles, and moss. Incubation ranges from 12 to 14 days and is carried out by the female.
Foraging and Feeding
Crescent-chested Warbler: Gleans insects from leaves and branches at medium heights in trees and shrubs. Often hangs chickadee-like to glean from undersides of leaves. Occasionally forages in dead vegetation.
Readily Eats
Vocalization
Crescent-chested Warbler: Song a short buzz: "t-t-t-t-t-t-t-t-t." Call a soft "sik."
Similar Species
Crescent-chested Warbler: Tropical Parula has black lores, two white wing bars, and blue-gray head, wings, rump, and tail. Lacks white supercilium and crescent on chest.
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