英文關鍵字
american
animal
antigone
aves
avian
beak
bird
birds
canadensis
crane
cranes
crowned
different
fauna
food
gray
grey
gruidae
gruiformes
indigenous
kinds
large
life
meadow
michigan
migratory
morning
native
nature
omnivore
plumage
sandhill
search
sitting
summer
usa
watching
white
wild
wildlife
wings