英文關鍵字
animal
beak
beautiful
bird
branch
cold
colorful
crumbling
dendrocopos
environment
europe
european
feather
frost
frozen
habitat
head
hollow
hollowed
ice
landscape
medius
middle
natural
nature
ornithology
outdoors
perching
punk
red
rotten
single
sitting
snow
snowing
snowstorm
spotted
stick
tree
trunk
white
wild
wildlife
winter
wood
woodpecker