The sound of birds singing is synonymous with spring. As delightful as the tweets and chirps may be, these songs are actually tied to the birds’ survival — and a combination of day length, sunlight ...

“In the spring, a young man’s fancy lightly turns to thoughts of love,” the saying goes. The same may be said of birds. That’s because spring is when most birds turn to family obligations—they mate, ...

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 ...