英文關鍵字
animal
animals
avian
background
beak
beautiful
beauty
bird
black
blue
calm
clear
cute
cygnus
dawn
day
duck
elegance
elegant
fauna
feather
fog
foggy
grace
graceful
grass
great
lake
landscape
life
light
love
lovely
mirror
mist
morning
natural
nature
ornithology
outdoor
park
pond
summer
swan
swim
water
white
wild
wildlife
young