英文關鍵字
animal
animals
beak
bird
birds
bread
cold
dove
drake
duck
ducks
fauna
feather
feathers
feed
feeding
fowl
frost
green
ice
lake
mallard
many
moroz
nature
nutriment
ornithology
park
pigeon
pond
river
season
snow
snowfall
water
waterfowl
weather
wild
wildlife
winter
wintering
wintertime