Black-throated blue warbler | Smithsonian’s National Zoo and Conservation Biology Institute https://nationalzoo.si.edu/animals/black-throated-blue-warbler
Migratory songbirds with distinct black-and-blue feathers, black-throated blue warblers prefer to live and hunt in dense, shady forests with lots of plant growth. They search the undersides of leaves and shrubs for arthropods and primarily feed caterpillars to their young.
Learn what else makes these animals unique.