英文關鍵字
alone
animal
animals
background
bathing
beak
beautiful
bird
birds
drinking
duck
egret
environment
family
feather
floating
folating
footage
goose
grass
green
heron
lake
lakes
love
mallard
natural
nature
neck
ornithology
outdoor
outdoors
park
pond
reflection
river
sea
summer
swan
swans
swim
swimming
water
white
wild
wildlife
wing
woody