英文關鍵字
animal
avian
background
beak
beauty
bird
black
blue
branch
bright
buds
common
eurasian
europe
european
fauna
feather
funny
green
habitat
one
ornithology
outdoor
portrait
season
shiny
singing
sitting
sky
song
spring
starling
sunlight
tree
twig
white
wild
wildlife
wing
winter
woods