英文關鍵字
animal
background
beak
biology
bird
black
blackbird
branch
call
catching
color
common
display
down
environment
feather
feeding
film
flight
fly
flying
forest
garden
grace
ground
lawn
male
mating
melody
merle
merula
nature
outdoors
plumage
resting
season
sing
singing
sings
sit
sitting
song
songbird
spring
tail
tree
turdus
while
wild
wildlife
yellow