英文關鍵字
animal
aquatic
beak
beautiful
beauty
bird
birds
brown
city
cleaning
close
closeup
colorful
cute
day
duck
duckling
ducks
dutch
environment
family
feathers
flock
fountain
fowl
green
group
head
lake
mallard
meadow
motion
national
natural
nature
offspring
ornithology
outdoor
outside
park
plumage
slow
summer
sunlight
water
waterfowl
wild
wildlife
young