英文關鍵字
alone
animal
aves
avian
background
beak
beautiful
bird
birdwatching
black
bright
common
corvus
crow
curious
dark
day
ecology
eye
fauna
feather
field
find
flight
flying
grass
gray
green
halloween
intelligent
isolated
japan
looking
natural
nature
one
ornithology
outdoor
park
plumage
portrait
raven
solitude
standing
sunny
watching
wild
wildlife
wing