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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CHICAGO — If you’ve ever been up before the ...

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 ...

Night owl, early bird — humans have associated different types of birds with different times of day since the dawn of time. And while some birds are more known for getting up with the sun, there are ...

Urban birds are singing more since the pandemic began to spread across the world, researchers wrote. The study links less noise pollution and fewer crowds to birds chirping earlier in the morning.