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animal
are
avenue
beak
bird
birds
bread
care
cereals
city
close
cold
common
crumb
day
diseases
dove
dry
eat
environment
feed
flock
fly
food
grass
groats
house
humans
hungry
infection
infectious
life
lifestyle
nature
oatmeal
ornithosis
outdoor
park
pecking
people
pigeon
pigeons
psittacosis
rock
season
source
square
street
sunny
taking
transmitted
urban
walking
wild
wing
winter