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Wilson's Warbler

Wilsonia pusillaOrder: PASSERIFORMESFamily: Wood Warblers (Parulidae)
Wilson's Warbler Head Illustration

Head

  • Bill Shape: All-purpose
  • Eye Color: Dark brown to black.
  • Head Pattern: Capped, Plain
  • Crown Color: Black
  • Forehead Color: Yellow
  • Nape Color: Olive-green
  • Throat Color: Yellow
  • Cere color: No Data
Wilson's Warbler Body Illustration

Body

  • Length Range: 12 cm (4.75 in)
  • Weight: 9 g (0.3 oz)
  • Size: Very Small (3 - 5 in)
  • Color Primary: Yellow, Olive
  • Underparts: Yellow
  • Upperparts: Olive-green
  • Back Pattern: Solid
  • Belly Pattern: Solid
  • Breast Pattern: Solid
Wilson's Warbler Flight Illustration

Flight

  • Flight Pattern: Swift flight of short duration.
  • Wingspan Range: 19 cm (7.5 in)
  • Wing Shape: Rounded-Wings
  • Tail Shape: Fan-shaped Tail
  • Tail Pattern: Solid
  • Upper Tail: Dark olive-green
  • Under Tail: Dark olive-green
  • Leg Color: Pink
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Family
Species Wilsonia pusilla
Length4.75 Inches
Wingspan7.5 Inches

Wilson's Warbler

Wilson's Warbler: Small warbler with olive-green upperparts, bright yellow face and underparts, distinct black cap. It has a long, olive-brown tail which it moves up and down, or in a circular fashion, as it searches for food. It is more common in the West than in the East. Legs and feet are pink.

● Song: "chip-chip-chip"

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

● Breeding & 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.

● 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.

Flight Pattern

Swift flight of short duration.
Wilson's Warbler Body Illustration
● Range & Habitat: Wilson's Warbler: Breeds from Alaska eastward to Newfoundland and south to southern California, New Mexico, central Ontario, and Nova Scotia. Spends winters in the tropics. Preferred habitats include moist thickets in woodlands and along streams as well as alder, willow thickets, and bogs.
BreedingMonogamous, Solitary nester
PopulationCommon to fairly common
MigrationMigratory
Weight0.3 Ounces