NEW YORK -- The next time you see birds flying in a V, consider this: A new study says they choreograph the flapping of their wings with exquisite precision to help them on their way. That's what ...

An air-filled sac within the birds' lungs is believed to increase the force the birds use to power flight muscles while soaring. Soaring birds -- like osprey, eagles, falcons, even vultures -- can ...

That's what scientists concluded after tracking a group of large black birds - each equipped with a tiny GPS device - that had been trained to follow an ultralight aircraft. One expert in animal ...