英文關鍵字
anas
animal
aythya
babies
baby
background
basque
beak
beautiful
bird
birds
blue
brown
cute
duck
ducks
environment
europe
family
feather
feathers
female
food
fowl
green
group
lake
landscape
life
male
mallard
natural
nature
outdoor
park
platyrhynchos
pond
river
small
spring
summer
sun
sunny
swim
water
waterfowl
white
wild
wildlife
winter