英文關鍵字
agriculture
animal
aviary
background
beak
beautiful
behavior
bird
black
breed
close
countryside
croak
cute
domestic
duck
duckling
eat
farm
farming
feathers
fluffy
food
footage
fowl
grass
green
household
hybrid
livestock
mulard
natural
one
opens
ornithology
outdoor
pluck
plumage
poultry
season
sit
sits
sitting
soft
spot
stretches
stretchesn
summer
waterfowl
white
yawns