The crows here definitely owe something to this woman, who has saved one of their flock from certain death. The woman in this ...

Ever wonder why some birds tweet, some sing, some quack, and the ones outside our bedroom windows at 5:00 in the morning caw?

These birds give off a short, low-pitched caw when they detect danger or birds they do not recognise. It is believed that cawing helps them look more threatening. But it does not always serve as a ...