Alan Murphy/ BIA / Myrtle Warbler (Setophaga coronata coronata), Texas

Karine Aigner / Portrait of a Myrtle warbler (Dendroica coronata coronata) with white background, Block island, Rhode Island, USA. Bird caught during scientific research.

Karine Aigner / Portrait of a Myrtle warbler, (Dendroica coronata coronata) with white background, Block island, Rhode Island, USA. Bird caught during scientific research.

Alan Murphy/ BIA / Myrtle Warbler (Setophaga coronata coronata) male, Texas

Rolf Nussbaumer / Tennessee Warbler (Vermivora peregrina), adult feeding on blooming Lemon bottlebrush, crimson bottlebrush (Melaleuca citrina), South Padre Island, Texas, USA. April

Alan Murphy/ BIA / Myrtle Warbler (Setophaga coronata coronata) male, British Columbia, Canada

Alan Murphy/ BIA / Myrtle Warbler (Setophaga coronata coronata) male calling, British Columbia, Canada

Alan Murphy/ BIA / Myrtle Warbler (Setophaga coronata coronata), Texas

Alan Murphy / Myrtle Warbler (Setophaga coronata coronata) flying, Texas

Steve Gettle / Myrtle Warbler (Setophaga coronata coronata) male, Crane Creek State Park, Ohio

Gerrit Vyn / Adult male "Myrtle" Yellow-rumped Warbler (Dendroica coronata) in breeding plumage, perched on branch, Seward Peninsula, Alaska, USA, May.