Ornithologists say the chirping of birds at daybreak is part of their mating ritual. They tell me that increasing daylight, especially in the spring and early summer, triggers the mating instinct in ...

It's that time of year: despite the still-freezing temperatures and lack of greenery, birds are beginning to think it's spring. And in spring male birds' thoughts turn to finding mates and ...

Why do birds chirp so loudly in the early morning? I like to have my bedroom windows open, but the noisy birds seen determined to cause a harsh clatter. Ornithologists say the chirping of birds at ...

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 ...

New research debunks the notion that chronotype is a binary choice between "morning people" and "night owls." It also shows that a substantial number of people, if not an outright majority, are not ...

This article was originally on a blog post platform and may be missing photos, graphics or links. See About archive blog posts. Cat fancier nedersten caught these two kitties getting very vocal while ...