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 ...

A Black-capped Chickadee, a year-round bird in Milwaukee, perches on a branch at the Schlitz Audubon Nature Center. With the sun shining a little more lately, you may have noticed more birds chirping ...

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 ...