英文關鍵字
biology
birds
branches
camouflaged
colony
curious
ears
fir
flock
flying
group
habitat
hiding
nature
night
nocturnal
owls
perching
place
plumage
raptors
sight
species
tree
wild
wintering
英文關鍵字
biology
birds
branches
camouflaged
colony
curious
ears
fir
flock
flying
group
habitat
hiding
nature
night
nocturnal
owls
perching
place
plumage
raptors
sight
species
tree
wild
wintering