英文關鍵字
animal
atra
beak
bird
birdwatching
black
blue
calm
common
coot
duck
eating
ecological
eurasian
fauna
feathers
feed
food
fulica
grass
habitat
lake
life
natural
ornithology
outdoor
plumage
pond
river
sea
surface
swim
water
waterbird
waterfowl
wet
wetland
wild
wildlife