英文關鍵字
beak
bird
birds
blue
brown
drake
duck
ducks
eye
feather
female
float
fowl
fowls
game
green
head
lake
log
male
mallard
nature
outdoor
outdoors
outside
plumage
preening
reflection
ripples
river
riverbank
riverside
standing
stream
tail
water
waterfowl
wet
wild
wildlife
wing
wings