Cromorant=flightless
bird
Down
feathers
four
chambered
heart
Flightless
bird
Gizzard
Ornithology
Emu =
flightless
bird
Flight
feathers
Small
stiff
wings
Body
feathers
bee
hummingbird
Keratin=protein
in feathers
Backbone
Phylum -
Chordata
8,000
species
Different
colored
eggs
ostrich:
largest
eggs
Oil coating
makes
wings
waterproof
Airs
sacs in
bones
smallest
eggs
air sacs
and
lungs
Warm-
blooded
Class
= Aves
Crop
Cromorant=flightless
bird
Down
feathers
four
chambered
heart
Flightless
bird
Gizzard
Ornithology
Emu =
flightless
bird
Flight
feathers
Small
stiff
wings
Body
feathers
bee
hummingbird
Keratin=protein
in feathers
Backbone
Phylum -
Chordata
8,000
species
Different
colored
eggs
ostrich:
largest
eggs
Oil coating
makes
wings
waterproof
Airs
sacs in
bones
smallest
eggs
air sacs
and
lungs
Warm-
blooded
Class
= Aves
Crop