Wilson’s Warblers, Cardellina pusilla, are easily recognized with their bright yellow feathers and black cap. After breeding in the western U.S. and Canada, these small warblers head to Mexico and Central America for the summer. During migration, they pass through all 48 states.
Look for them in shrubby areas of scrubs and forests near a water source. These birds rarely stay still. They fly out and back from their low perches to catch insects in mid-air. They are quick to snatch spiders, caterpillars, and larval insects off of twigs and leaves.