英文關鍵字
adorable
animal
animals
aquatic
avian
baby
beauty
bird
birds
couple
cygnet
day
elegance
family
feathers
feet
fowl
grass
green
grey
lake
landscape
little
love
nature
one
ornithology
outdoor
outdoors
pair
park
spring
summer
sun
swan
swans
swim
three
unit
water
webbed
white
wild
wildlife
wing
wings
young
youth