How does a macaw have protection from attackers?

A beak that is as big as a black bear or cougar tooth, that can crack a finger bone like a nut shell. They can shred flesh to the bone as well. That's just a start. read more

Birds of the order Passeriformes, which make up over half of all bird species, have downy coats that trap body heat, while their outer feathers protect them from wind and cold. Alternatively, some birds, including kinglets and chickadees, drop their body temperatures in response to extreme cold, entering a state of controlled hibernation when temperatures dip overnight. read more