英文關鍵字
adult
animal
animals
background
beak
beautiful
bird
blue
brown
canada
canadian
cold
duck
ducks
family
fauna
feather
fowl
frozen
geese
goose
gray
lake
mallard
natural
nature
north
outdoor
outdoors
park
plumage
pond
river
season
shore
snow
species
swim
swimming
water
waterfowl
white
wild
wildlife
winter
winters
wisconsin