英文關鍵字
bird
bred
breed
breeding
city
common
control
country
danger
dirt
door
dove
eat
eating
environment
excrement
family
feathers
fed
feed
feeding
feral
field
fight
flock
group
house
large
life
live
living
mate
numbers
pest
pigeon
rut
safe
safer
safety
season
seed
species
squabble
street
town
urban
weather