英文關鍵字
animal
background
bask
beak
beautiful
beauty
bird
black
white
duck
ducks
brown
city
park
cute
domestic
farm
fauna
feather
flight
head
illustration
isolated
lake
landscape
mallard
migration
natural
nature
ornithology
outdoor
plumage
pond
portrait
river
silhouette
summer
sun
vector
water
waterbird
waterfowl
wild
wildlife
wing