英文關鍵字
anas
anatidae
anatine
animal
aquatic
bank
bird
care
down
duck
ducklings
dutch
europe
european
family
fauna
female
float
fluff
forage
group
habitat
habitats
hatchling
holland
mallard
mama
mother
mottled
natural
nature
netherlands
offspring
platyrhynchos
plumage
pond
shore
shot
stay
swim
swimming
together
tracking
water
waterfowl
wild
wildlife