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Chestnut-sided Warbler

Dendroica pensylvanicaOrder: PASSERIFORMESFamily: Wood Warblers (Parulidae)
Chesnut-sided Warbler Head Illustration

Head

  • Bill Shape: All-purpose
  • Eye Color: Dark brown in all ages.
  • Head Pattern: Eyeline, Capped, Eyering, Unique pattern, Malar or malar stripe
  • Crown Color: Yellow
  • Forehead Color: White
  • Nape Color: Olive-green
  • Throat Color: White
  • Cere color: No Data
Chesnut-sided Warbler Body Illustration

Body

  • Length Range: 13-13 cm (5-5.25 in)
  • Weight: 11 g (0.4 oz)
  • Size: Small (5 - 9 in)
  • Color Primary: White, Black
  • Underparts: White with Red-brown flanks.
  • Upperparts: Black streaked olive-green.
  • Back Pattern: Striped or streaked
  • Belly Pattern: Solid
  • Breast Pattern: Solid

Flight

  • Flight Pattern: Weak fluttering flight with shallow wing beats.
  • Wingspan Range: 19-21 cm (7.5-8.25 in)
  • Wing Shape: Rounded-Wings
  • Tail Shape: Fan-shaped Tail
  • Tail Pattern: Solid
  • Upper Tail: Black
  • Under Tail: Black with white patches.
  • Leg Color: Blue-gray
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Family
Species Dendroica pensylvanica
Length5 - 5.25 Inches
Wingspan7.8 Inches

Chestnut-sided Warbler

Chestnut-sided Warbler: Medium warbler with black-streaked upperparts, white underparts, and chestnut-brown flanks. The cap is bright yellow and moustache stripe is black. Often cocks its tail high above its back as it feeds. The only North American warbler with pure white underparts in all seasons.

● Song: "please-please-pleased to meetcha"

● Foraging & Feeding: Chestnut-sided Warbler: Feeds mostly on insects and some fruits. Forages alone, searching undersides of leaves, hopping from branch to branch with tail cocked.

● Breeding & nesting: Chestnut-sided Warbler: Three to five brown and purple blotched, white to pale green eggs are laid in a grass-and-bark nest lined with hair and rootlets, and built a few feet above the ground in a small tree or bush. Incubation ranges from 11 to 13 days and is carried out by the female.

● Similar species: Chestnut-sided Warbler: Bay-breasted Warbler has brown crown and dark throat. Golden-winged Warbler resembles immature, but has a dark throat and cheek patch.

Flight Pattern

Weak fluttering flight with shallow wing beats.
Chesnut-sided Warbler Body Illustration
● Range & Habitat: Chestnut-sided Warbler: Breeds from south-central Canada east to Nova Scotia, south to east-central U.S., and in the Appalachian Mountains. Spends winters in the tropics. Preferred habitats include young, open, second-growth woodlands and scrub.
BreedingMonogamous, Solitary nester
PopulationFairly common to common
MigrationMigratory
Weight0.4 Ounces