WASHINGTON (AP) — Perched on a flowering shrub on a windy Andean mountainside, the tiny Ecuadorian Hillstar hummingbird chirps songs of seduction that only another bird of its kind can hear. As the ...

During mating season, Long-billed Hermit males gather in groups for a talent contest called a “lek.” From a perch, one male begins a courtship ritual that starts with a series of chirps. Other males ...