英文關鍵字
animal
animals
asia
asian
beak
behavior
behaviors
bill
bills
bird
birds
breeding
collecting
eastern
eurasia
eurasian
europe
european
funny
great
its
lake
leaves
long
marsh
nature
onocrotalus
ornithology
pelecanidae
pelecanus
pelican
pelicans
picking
pink
playing
pond
pouch
river
rosy
season
seasonal
swamp
typical
use
using
water
white
wild
wildlife
zoo
zoology