英文關鍵字
adorable
animal
animals
background
beautiful
bird
black
blue
cane
chick
common
coot
diving
duck
duckling
ducks
environment
eurasian
family
grass
lake
landscape
mallard
natural
nature
nest
nobody
north
outdoor
plumage
pond
reed
river
sky
swim
swimming
thicket
travel
water
white
wild
wildlife