英文關鍵字
asphalt
background
beak
bird
birds
birdseed
bread
city
corn
crowd
day
dove
eat
eating
feed
feeding
fly
food
free
freedom
grains
gray
grey
ground
heap
hollow
hungry
life
lot
lots
many
millet
natural
nature
outdoor
pack
peace
pecking
pigeon
pigeons
provender
sidewalk
square
street
switchgrass
tail
town
view
wild