Greg Lasley/Vireo

Common Yellowthroat

Geothlypis trichas

Conservation status Has undoubtedly declined in many regions with draining of marshes, and perhaps also in some areas where good habitat still exists. However, still widespread and very common.
Family Wood Warblers
Habitat Swamps, marshes, wet thickets, edges. Breeds most abundantly in marshes and other very wet habitats with dense low growth. Also nests in briars, moist brushy places, tangles of rank weeds and shrubbery along streams, and overgrown fields, but is generally scarce in drier places. In migration and winter, still most common in marshes, but also occurs in any kind of brushy or wooded area.
Abundant and well-known, the Common Yellowthroat has succeeded by being a nonconformist. As the only one of our warblers that will nest in open marshes, it is found in practically every reed-bed and patch of cattails from coast to coast. Although it sometimes hides in the marsh, its low rough callnote will reveal its presence. The male often perches atop a tall stalk to rap out his distinctive song, wichity-wichity-wichity.
Photo Gallery
Feeding Behavior

Forages in marsh and among other dense low growth, searching for insects on surface of plants, sometimes hovering briefly to take insects from foliage. Occasionally makes short flights to catch insects in mid-air, and sometimes forages on ground.


Eggs

Usually 3-5, sometimes 6. Creamy white with brown and black spots. Incubation is by female only, 12 days. The male feeds the female on the nest during incubation. Very commonly parasitized by cowbirds. Young: Fed by both parents. Leave the nest after 8-10 days. Normally 2 broods per year. Young are dependent on parents for a considerable period, longer than most other warblers.


Young

Fed by both parents. Leave the nest after 8-10 days. Normally 2 broods per year. Young are dependent on parents for a considerable period, longer than most other warblers.

Diet

Mostly insects. Feeds mainly on insects, including small grasshoppers, dragonflies, damselflies, mayflies, beetles, grubs, cankerworms and other caterpillars, moths, flies, ants, aphids, leafhoppers, and others; also eats spiders, and a few seeds.


Nesting

Male displays to female during courtship by flicking wings and tail, following her closely, and performing a flight display: flying up to 25-100' in the air and returning to another low perch, calling and singing. Nest: Prefers to nest low (less than 3' up) on tussocks of briars, weeds, grasses, or shrubs, and among cattails, bulrushes, sedges in marshes. Bulky open cup built by female, sometimes with a partial roof of material loosely attached to the rim. Made of weeds, grass stems, sedges, dead leaves, bark, and ferns; lined with fine grass, bark fibers, and hair.

Text © Kenn Kaufman, adapted from
Lives of North American Birds

Illustration © David Allen Sibley.
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Migration

Migrates mostly at night. In many areas, migration is spread over a long period in both spring and fall.

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Migration

Migrates mostly at night. In many areas, migration is spread over a long period in both spring and fall.

Songs and Calls
Loud, fast witchity-witchity-witchity-witchity-wit or which-is-it, which-is-it, which-is-it. Call a sharp chip.