Yellow-rumped Warbler

Setophaga coronata

  • Version: 2.0 — Published January 1, 1998
  • Pamela D. Hunt and David J. Flaspohler

Free Introduction Article Access

The Introduction Article is just the first of 11 articles in each species account that provide life history information for the species. The remaining articles provide detailed information regarding distribution, migration, habitat, diet, sounds, behavior, breeding, current population status and conservation. Each species account also includes a multimedia section that displays the latest photos, audio selections and videos from Macaulay Library’s extensive galleries. Written and continually updated by acknowledged experts on each species, Birds of North America accounts include a comprehensive bibliography of published research on the species.

A subscription is needed to access the remaining account articles and multimedia content.

Subscribe Now

Already a subscriber? Sign In
Figure 1a. Distribution of the Yellow-rumped Warbler.
Figure 1b. Distribution of the Yellow-rumped Warbler (Myrtle).
Figure 1c. Distribution of the Yellow-rumped Warbler (Audubon's).
Adult male Yellow-rumped Warbler, Ontario, May

Coronata group.  Definitive Alternate plumage.; photographer Arthur Morris

Editor's Note:Phylogenetic analyses of sequences of mitochondrial and nuclear DNA indicate that all species formerly placed in Dendroica, one species formerly placed in Wilsonia (citrina), and two species formerly placed in Parula (americana and pitiayumi) form a clade with the single species traditionally placed in Setophaga (ruticilla). The generic name Setophaga has priority for this clade. See the 52nd Supplement to the AOU Checklist of North American Birds for details. Future revisions of this account will reflect these changes.

Formerly considered 2 species, the Myrtle Warbler in the East and Audubon's Warbler in the West (see Systematics, below), the Yellow-rumped Warbler is one of the most common warblers in North America. With a broad breeding range, stretching from Alaska south to Guatemala and east to the northeastern United States, it is often abundant in winter in the southern United States, Mexico, and the western Caribbean.

Among warblers, this species is one of the most ecologically generalized. Although it is confined largely to coniferous breeding habi-tat, individuals forage in a broad range of microhabitats and employ a variety of foraging techniques, from fly-catching to foliage-gleaning for insects. During the nonbreeding season, this warbler is found in almost any habitat and expands its diet to include a substantial amount of fruit. Its ability to digest the waxes in bayberries (Myrica spp.) make it unique among warblers, and allows populations to winter in coastal areas as far north as Nova Scotia.

Myrtle and Audubon's warblers hybridize in the southern Canadian Rockies. On the basis of this evidence, as well as genetic similarities, the 2 were combined into a single species. These 2 former species are very similar in most aspects of their biology, including breeding, foraging, habitat, and song.

Despite the wide range and abundance of the Yellow-rumped Warbler, many aspects of its biology remain largely unstudied—particularly its breeding biology, owing in part to the remoteness of much of its breeding range and to its low breeding densities. Perhaps because the species is so numerous during migration and winter, recent advances have centered on this part of the annual cycle, and often make use of captive birds. These investigations include studies of migration behavior and physiology (Yarborough and Johnston 1965, Hussell and Caldwell 1972, Terrill and Ohmart 1984, Moore and Simm 1985, Moore and Phillips 1988, PDH), digestive physiology (Place and Stiles 1992, Afik et al. 1995), and metabolism (Yarbrough 1971, Hussell and Caldwell 1972). Work in the hybrid zone in Canada has greatly expanded our understanding of the systematics of the complex (Hubbard Hubbard 1969, Hubbard 1970b, Barrowclough 1980). A great deal of work has also been done on the species' ecological niche in both breeding and wintering warbler assemblages, particularly in the areas of foraging ecology and behavior (Morse Morse 1968a, Morse 1976b, Morse 1989a, Malmborg and Willson 1988).

Recommended Citation

Hunt, P. D. and D. J. Flaspohler (1998). Yellow-rumped Warbler (Setophaga coronata), version 2.0. In The Birds of North America (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA.