英文關鍵字
abstract
animal
beautiful
bird
birds
breed
city
close
cobblestone
dangerous
day
dirty
eat
fauna
feather
feathered
feathers
feeding
flight
flock
food
freedom
gray
group
hungry
infection
landscape
lot
nature
outdoors
pigeon
pigeons
plumage
rare
season
sidewalk
silhouette
source
street
tail
urban
view
walk
wild
wildlife
wing
wings