Possible Hybrid - Bay-breasted Warbler X Blackpoll Warbler
Captured: May 16, 2001 at Powdermill Nature Reserve in SW Pennsylvania
Age/sex: second-year female
Wing chord (unflattened): 68.5mm
Tail length: 49.0mm
Bill (from anterior nares): 7.5mm
Exposed culmen: 9.5mm
Tarso-metatarsus: 19.0mm
Weight: 11.9g (with moderate fat deposits)