英文關鍵字
animal
bird
blue
caeruleus
cold
corvidaen
cyanistes
december
eurasian
europaea
europe
europea
family
fauna
feeding
flakes
food
forest
found
freezing
larch
major
margarine
mixture
nature
nuthatch
oat
ornithology
palearctic
paridae
parus
passerine
peanuts
seeds
sitta
small
snow
snowy
species
sunflower
tit
watching
wildlife
wings
winter
wood