英文關鍵字
animal
avian
background
beak
beautiful
beauty
bird
birds
black
blue
branta
calm
canadensis
canadian
clear
color
cygnus
day
elegance
environment
feather
feathers
floating
forage
geese
gentle
goose
graceful
lake
light
love
mute
natural
nature
olor
outdoor
outdoors
pair
peaceful
reflection
sun
sunny
surface
swan
swans
swim
swimming
together
two
water
waterbird
waterfowl
white
wild
wildlife
winter