英文關鍵字
american
animal
avian
bird
birds
birdwatching
branch
chirping
colorado
habitat
migratorius
migratory
nature
orange
ornithology
outdoors
perching
robin
songbird
spring
thrush
time
top
tree
turdus
wild
wilderness
wildlife
英文關鍵字
american
animal
avian
bird
birds
birdwatching
branch
chirping
colorado
habitat
migratorius
migratory
nature
orange
ornithology
outdoors
perching
robin
songbird
spring
thrush
time
top
tree
turdus
wild
wilderness
wildlife