英文關鍵字
active
agile
aquatic
beautiful
bird
cold
colorful
community
drake
duck
family
feather
female
flock
foot
frozen
ice
lake
male
mallard
many
migratory
move
natural
nature
outdoors
plumage
pond
pool
reflection
river
run
scenic
slide
spring
springtime
swim
swimming
thaw
together
water
waterfoul
weather
webfoot
wild
wildlife
wing
winter