英文關鍵字
animal
beak
berries
bird
birdwatching
branch
brown
bush
copy
day
domesticus
environment
flies
fly
flying
foliage
garden
grey
growth
high
house
leaf
lilac
nature
off
ornithology
perching
roof
scared
single
sitting
small
space
sparrow
tail
top
tree
twig
urban
watching
wild
wings