英文關鍵字
africa
african
animal
animals
back
beak
big
bill
billed
bird
birds
black
botswana
chobe
ecology
egret
great
hippo
hippopotamus
hippos
ibis
marabou
marabu
mycteria
national
natural
outdoors
park
river
safari
savannah
standing
stork
storks
swamp
watching
water
white
wild
wilderness
wildlife
yellow