英文關鍵字
anas
animal
animals
beak
beautiful
bird
birds
blue
day
duck
ducks
feather
feathered
feathers
flapping
flaps
flight
fly
flying
fowl
lake
lighting
mallard
mo
motion
natural
nature
ornithology
outdoor
outdoors
platyrhynchos
plumage
sea
shaking
slow
stretching
swimming
video
water
waterbird
waterfowl
wet
white
wild
wildlife
wings