Wilson's Warbler

Cardellina pusilla




Wood-Warblers (Parulidae)

Code 4


Code 6



Egg Color:

White to creamy white with brown flecks

Number of Eggs:

4 - 7

Incubation Days:

10 - 13

Egg Incubator:


Nest Location:

0 - 3 feet above ground.

Nest Material:

Dry leaves, stalks, moss, and grass.





Wilson's Warbler: Small warbler with olive-green upperparts, bright yellow face and underparts, and distinct black cap. Female and juvenile are duller, lack black cap, and have unmarked wings and tail.

Range and Habitat

Wilson's Warbler: Breeds from Alaska eastward to Newfoundland, Ontario and Nova Scotia, and south along the west coast to southern California. Spends winters from extreme southern California and the Gulf Coast south into Mexico. Preferred habitats include moist thickets in woodlands and along streams as well as alder, willow thickets, and bogs.

Breeding and Nesting

Wilson's Warbler: Four to seven brown flecked, white to creamy white eggs are laid in a bulky nest made of leaves, rootlets, and moss, lined with hair and fine plant materials, and concealed on the ground in a dense clump of weeds or sedges. Incubation ranges from 10 to 13 days and is carried out by the female.

Foraging and Feeding

Wilson's Warbler: Eats mainly insects (especially leafhoppers) and spiders, but occasionally consumes berries.

Readily Eats

Sugar Water, Fruit, Nut Pieces


Wilson's Warbler: Song is a rapid, staccato series of chips, which drop in pitch at the end.

Similar Species

Wilson's Warbler: Hooded Warbler has white spots on tail, a longer bill, dark lores, male has a black hood, and female has black or olive crown and sides of neck. Yellow Warbler has a shorter tail, female and juvenile show yellow edging to wings and wing coverts, and yellow spots in tail.


Belly, undertail coverts, chest, flanks, and foreneck.

Back, rump, hindneck, wings, and crown.
The area on top of the head of the bird.
The front part of the head consisting of the bill, eyes, cheeks and chin.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X