Bird Species Identifier

Identification Summary

A small yellow perching bird (5–8") in eastern North America during spring migration, seen in urban areas, most strongly fits a warbler, and the yellow overall look most often points to Yellow-rumped Warbler (typically “yellow” with a more complex pattern).

Confidence: Medium

Most Likely Species

1. Yellow-rumped Warbler (Setophaga coronata) — High likelihood
   • Often appears bright yellow on the underparts and can look “all yellow” at a distance, especially during migration.
2. Second most likely: Prothonotary Warbler (Protonotaria citrea)
   • Strong yellow coloration; can be seen in human-adjacent areas when suitable wet/wooded habitat is nearby.

Alternative Possibilities

1. Common Yellowthroat (Geothlypis trichas)
   • Yellow with a contrasting mask; if the “mask” wasn’t noted, it can seem simply yellow.
2. American Goldfinch (Spinus tristis)
   • Bright yellow, but typically not described as a 5–8" “spring migration perching warbler” in the same way; often more uniform yellow and more seedbird behavior.
3. Northern Parula (Parula americana) or Magnolia Warbler (Magnolia warbler)
   • Can show yellow tones, but usually have clearer patterning beyond “yellow.”
4. Yellow Warbler (Setophaga petechia)
   • Very yellow overall; however, many observers expect a more obviously streaked look compared with what’s often reported as “general yellow.”

Why It Matches

• Size (5–8") + perching + spring migration strongly indicates a small passerine, most likely a New World warbler.
• Yellow coloration narrows warblers to species that can read as strongly yellow in the field:
  • Yellow-rumped is a common spring migrant and frequently encountered in semi-urban settings.
  • Prothonotary is also a bright yellow warbler, often associated with wet wooded edges—sometimes close to towns.
• Urban context favors species that tolerate human landscapes during migration (Yellow-rumped especially).

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