Subfamilies
Geese, swans, and ducks belong to this major group.
Waterfowl
Like mammals, birds have this type of metabolism that keeps them warm regardless of the outside temperature.
Warm Blooded
It's the biological class name that encompasses all bird species
Aves
These modified arm bones give a bird its flapping strength.
Along with worms, this tiny external parasite is a common cause of skin and feather issues in birds.
Mites
This family includes magpies, crows, and ravens.
Crows and jays
This large outdoor or indoor bird enclosure is listed as an alternative to a standard cage.
aviary
Eagles and hawks belong to this predatory group.
This replaces a bird's teeth to lower its head weight.
Beak
This painful bacterial infection and inflammatory reaction affects the feet of birds
Bumblefoot
Goldfinches, crossbills, and bramblings fall into this double-named category.
Songbirds/finches
This specific types of feathers include contour, flight, filoplume, powder down, and this short-named variety.
down feathers
This is the highest taxonomic Kingdom that all birds belong to.
Animalia
These structures use interlocking barbules that act like microscopic zippers to keep a bird waterproof.
Feathers
This life-threatening condition occurs when a female bird is unable to pass an egg from her oviduct
Egg Binding
Along with the kiwi, this largest living bird is a member of the Palaeognathae infraclass.
Ostrich
According to the slide, birds officially appeared on Earth approximately this many millions of years ago
80 million
Because they have backbones, birds belong to this phylum.
Chordata
This strong protein makes up a bird's feathers.
Keratin
This is a highly contagious viral disease
Avian influenza or bird flu
This group contains gamebirds like turkeys and partridges.
Pheasants
This rapid internal process is highlighted on the slide's orange poster as a key engine for a bird's high energy.
fast metabolism
Meaning "old jaws," this biological infraclass contains all flat-breasted, flightless birds like ostriches, emus, and kiwis
Palaeognathae
This reflex locks around branches so a sleeping bird won't fall
Tendons
This disease causes a bird's stomach to stretch out permanently.
proventricular dilatation