One of the largest herons to spot in North America is the Great Blue Heron ... Although its beak is quick sharp, the bird ...

These birds are most active at dawn and dusk. The Atlantic Puffin, which is nicknamed “the clown of the sea,” has a stunning beak that turns bright orange, yellow, and blue during the breeding ...

Smaller finches with less-powerful beaks perished. So the birds that were the winners in the game of natural selection lived to reproduce. The big-beaked finches just happened to be the ones ...