英文關鍵字
asia
baby
bird
box
bred
breed
central
common
danger
east
eat
environment
europe
family
fed
feed
fledge
flight
fly
garden
great
house
insect
major
middle
natural
nature
nest
north
palearctic
parus
passerine
resident
safe
safety
seed
small
south
species
tit
urban
widespread
woodland
young