英文關鍵字
animal
avian
big
biology
bird
camelus
conservation
courtyard
domestic
domesticated
eco
ecology
emu
environment
farm
fauna
feather
foot
fowl
ground
habitat
height
leg
livestock
male
nature
neck
nobody
one
ornithology
ostrich
outdoor
outdoors
outside
park
pet
poultry
struthio
travel
vertebrate
walk
wild
wildlife
yard
zoo
zoology