英文關鍵字
animal
animals
autumn
beak
bill
bird
birds
bisdorf
convalesce
country
crane
cranes
crying
direction
europe
european
fat
fatten
fauna
feather
feathers
fly
flying
flyway
forage
foraging
fowl
gather
gathering
german
germany
graceful
group
grouping
gruidae
gruiformes
harmony
hibernate
hohendorf
lagoon
legged
legs
lighten
lightening
long
loud
migrate
migrating
migration
morning
natural
nature
neck
necked
october
outdoor
outdoors
outside
route
rural
scandanavia
sunrise
together
wild
wildlife
wing
wings