Birds
Definition of Birds Hierarchical Category as it relates to Animals
A group of warm-blooded vertebrates constituting the class Aves, characterized by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton, typically known to have the ability to fly, and classified under the larger category of animals.
Child Hierarchical Categories
Amphibians
Aquatic Animals
Aquatic Birds
Arthropods
Birds of Prey
Canaries
Carnivorous Animals
Cold-Blooded Animals
Crows
Diurnal Animals
Domestic Animals
Ducks
Eagles
Endangered Animals
Exotic Birds
Extinct Animals
Falcons
Fish
Flamingos
Flightless Birds
Game Birds
Hawks
Herbivorous Animals
Hummingbirds
Insects
Mammals
Marine Animals
Migratory Birds
Nocturnal Animals
Omnivorous Animals
Ostriches
Owls
Parrots
Peacocks
Penguins
Pet Birds
Pigeons
Prehistoric Birds
Reptiles
Seagulls
Songbirds
Sparrows
Swans
Terrestrial Birds
Warm-Blooded Animals
Wild Animals