The stark contrast between bright yellow and midnight black is eye-catching, especially when it adorns an elegant bird hopping on branches ... With their all-black bodies, golden yellow heads ...

and Spot-breasted all have orange on their fronts while the Altamira, Baltimore, Streak-backed, and Orchard Orioles are more ...

Male Galápagos yellow warblers appear to be shifting their behavior and adjusting their calls in response to the din of ...