英文關鍵字
alone
animal
background
beak
beautiful
beauty
bill
bird
birds
blue
bread
bright
brown
close
daylight
drake
drakes
duck
ducks
falling
feather
flock
flying
grass
green
head
holds
lake
looking
mallard
nature
orange
ornithology
outdoor
outdoors
profile
reflection
river
sitting
summer
swim
swimming
swims
they
view
water
waterfowl
white
wild
wildlife
wing