英文關鍵字
and
animal
animals
baby
barn
beak
beg
bird
birds
black
born
busy
care
child
close
delicate
eating
family
feather
feeding
four
fragile
greedy
group
hatch
hatchling
help
hirundo
home
hungry
less
migrant
nature
need
nest
new
pets
rustica
sterna
swallow
video
young