examples of birds 
There are more than 9,000 species of birds scattered around the world.
great horned owl
Nocturnal raptor found in the forests of North America, with a protruding tuft of feathers on each side of its head.
Widely prevalent raptor with piercing eyes, a hooked beak and sharp talons allowing it to catch live prey.
Diurnal scavenger of the Americas, with a bald head and neck; one California species is facing extinction.
Diurnal raptor of the Americas and Eurasia, mainly a scavenger, with a bald head and neck, powerful beak and weak talons.
Diurnal bird of prey with piercing eyes and powerful talons and beak; it captures its prey in flight and is sometimes trained to hunt.