A pure-yellow songbird whose sweet "sweet sweet sweet I'm so sweet" song is among the most easily learned. They have a clever defense against cowbird parasitism — building a new nest floor over the cowbird egg, sometimes layering 6 floors deep.
§ Quick facts
§ Encyclopedia
The yellow warbler is a New World warbler species. Yellow warblers are the most widespread species in the diverse genus Setophaga, breeding in almost the whole of North America, the Caribbean, as well as northern South America.
Source: Wikipedia — Yellow warbler Licensed under CC BY-SA 4.0
§ Identification
Field marks. Bright yellow songbird with subtle olive-yellow tones; males have rusty streaks on the breast. Black eye creates a "deer-eyed" look.
Similar species. American Goldfinch (no streaks, black wings). Wilson's Warbler (black cap). Common Yellowthroat (black mask).
Voice. Sweet, varied phrases; bright "tswee-tswee-tswee-sweet" song.
§ Diet & behavior
Diet. Insects (caterpillars especially), spiders, occasionally berries.
Behavior. Males defend territories with bright "sweet sweet sweet I'm so sweet" song. Among the easiest warblers to attract to gardens with native plantings.
§ Range
Most of North America in summer; Mexico to Brazil in winter
§ Habitat
Wet thickets, willows, riparian shrub, mangroves
§ Threats
Loss of riparian shrub, climate-driven habitat shifts, brood parasitism.
§ Conservation status
According to the IUCN Red List, the yellow warbler is currently classified as Least Concern.
§ What helps
Maintain native willow and other riparian shrubs. Support cowbird-management research. Reduce road salt drifting into wetlands.
§ Further reading
- Wikipedia — Yellow warbler
- www.allaboutbirds.org — authoritative profile of Setophaga petechia
- IUCN Red List · taxon 22721677
- iNaturalist · taxon 12810
- eBird · yelwar
- GBIF occurrence records
- Encyclopedia of Life — Setophaga petechia
§ Sources cited
- Cornell Lab — All About Birds
- National Audubon Society
- iNaturalist
- IUCN Red List 2018
