英文關鍵字
activity
animals
aquatic
backgrounds
beak
beauty
birds
breast
close
color
diving
domestic
drake
duck
duckling
eye
feather
feeding
flank
floating
following
foul
freshwater
head
image
individuality
innocence
lake
life
mallard
meat
moving
nature
north
outdoors
pets
pond
poultry
ripple
river
shiny
swimming
view
water
waterfowl
wild
wildlife
wings
wingspan
wingspread