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Yellow-rumped Warbler

From Opus

Adult male, breeding plumage, Myrtle WarblerPhoto © by ForcreeksSellwood, Oregon, USA, April 2005
Adult male, breeding plumage, Myrtle Warbler
Photo © by Forcreeks
Sellwood, Oregon, USA, April 2005
Setophaga coronata

Includes: Myrtle Warbler; Audubon's Warbler; West Mexico Warbler; Goldman's Warbler


[edit] Identification

Adult male, breeding plumage, Audubon's subspeciesPhoto © by ryanibis Whetstone, Arizona, March 2018
Adult male, breeding plumage, Audubon's subspecies
Photo © by ryanibis
Whetstone, Arizona, March 2018

14–15 cm (5½-6 in)
Yellow patches on rump and sides unique but those on the sides occasionally lacking.

Females are more brownish and in the Audubon's form may have whitish or buff throat.
Outside of breeding plumage, both sexes become duller but usually still show yellow rump and side patches.

[edit] Variations

Winter plumage, Myrtle WarblerPhoto ©  by etowNorth-central Ohio, USA, October 2007
Winter plumage, Myrtle Warbler
Photo © by etow
North-central Ohio, USA, October 2007

Birds of subspecies nigrifrons (West Mexico Warbler) are large and have dark mantle, while Goldman's Warbler (goldmani) are large and have black mantle.

Breeding males of the Myrtle form and the form sometimes called Audubon's Warbler both have grey mantle with black stripes.

The Myrtle form has white throat and black on side of head mostly surrounded by white below the grey crown, while Audubon's have yellow throat, reduced white markings and less contrast between ear-coverts and crown.
Both forms have white wing bars but more extensive white feather edges in the Audubon's form. The Audubon's form become blacker in the southern parts of its range.

[edit] Distribution

Adult male, breeding plumage, subspecies goldmaniPhoto © by Tom Jenner.Cordillera de los Cuchumatanes in western Guatemala, April 2006.
Adult male, breeding plumage, subspecies goldmani
Photo © by Tom Jenner.
Cordillera de los Cuchumatanes in western Guatemala, April 2006.

North America's most common warbler. Breeds from Alaska east to northern Quebec (absent only in arctic region) south across most of the western United States; northern Minnesota and Michigan; New York; western Pennsylvania, and New England; also along the Appalachians south to West Virginia.

Found anywhere in North America in migration. Winters in southern United States, along the west coast north to Washington, and in Central America. Rare in northern South America.

Casual vagrant to Great Britain (22 records).

[edit] Taxonomy

Formerly placed in genus Dendroica.

[edit] Subspecies

ImmaturePhoto © by wonderviewNova Scotia, Canada, August 2018
Photo © by wonderview
Nova Scotia, Canada, August 2018

There are 6 subspecies1
The eastern (Myrtle) and western (Audubon's) races of this species were once considered separate species. New results indicate that this topic probably will be assessed again soon, and if so, each of the four groups may become full species.

  • Group "Audubon's Warbler"
  • S. c. auduboni:
  • breeds along the Pacific Slope region
  • S. c. memorabilis:
  • Group "Myrtle Warbler"
Juvenile femaldPhoto © by rrybickiMarblehead, Ohio, October 2018
Juvenile femald
Photo © by rrybicki
Marblehead, Ohio, October 2018
  • S. c. coronata:
  • S. c. hooveri:
  • breeds from Alaska, northern Yukon, and north-western Mackenzie south to northern British Columbia (this form sometimes lumped with coronata)
  • Group "West Mexico Warbler" (or sometimes called "Black-fronted Warbler")
  • S. c. nigrifrons:
  • breeds Chihuahua and Durango mountains in western Mexico.
  • Group "Goldman's Warbler"
  • S. c. goldmani:
  • breeds south-eastern Chiapas (rare) and Guatemala

[edit] Habitat

Coniferous and mixed forests also winters in open area.

[edit] Behaviour

[edit] Diet

Diet mostly insectivorous but will eat berries and other vegetation. Audobon's group eat some fruit in the winter months.

[edit] Gallery

Click on photo for larger image

[edit] Reference

  1. Dunn, Jon; Garrett, Kimball. 1997. A Field Guide to Warblers of North America. Boston: Houghton Mifflin Company. ISBN 9780395783214
  2. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2016. The eBird/Clements checklist of birds of the world: v2016, with updates to August 2016. Downloaded from
  3. Birdforum thread discussing the taxonomy of Yellow-rumped Warbler
  4. Birds of North America read April 2018

[edit] External Links


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