英文關鍵字
animal
bird
birdhouse
blue
branch
bright
color
colour
comfortable
egg
eggs
forest
green
group
habitat
home
house
laying
life
may
natural
nature
nest
outdoors
oviposition
philomelos
pine
propagation
reproduction
robin
russia
savage
shell
six
small
spring
thrush
tree
turdus
wild
wildlife