Chestnut-sided Warbler

Dendroica pensylvanicaOrder: PASSERIFORMESFamily: Wood Warblers (Parulidae)

Breeding Location:

Forest edge, Bushes, shrubs, and thickets

Breeding Type:

Monogamous, Solitary nester

Breeding Population:

Fairly common to common

Egg Color:

White to pale green with purple and brown blotches

Number of Eggs:

3 - 5

Incubation Days:

11 - 13

Egg Incubator:

Female

Nest Material:

Bark chips, vines, and plant material with lining of animal hair and grasses.

Migration:

Migratory

Overview

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.

Range and 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.

Breeding and 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.

Foraging and 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.

Readily Eats

Sugar Water, Fruit, Nut Pieces

Vocalization

Chestnut-sided Warbler: Song is rich and musical with an emphatic ending, sometimes interpreted as "please-please-pleased to meetcha."

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.

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Bird Call Credits: The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology. Martyn Stewart, http://www.naturesound.org, Redmond, Washington USA. The reuse or copying of bird calls in this database is strictly forbidden.

Chestnut-sided Warbler

● 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.

● 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

Field Guide to Birds of North America