英文關鍵字
animal
banding
belly
bird
birdwatching
bottom
brown
capture
children
close
detail
dunnock
europe
european
forest
grass
green
hand
male
man
nature
ornitholog
ornithologist
ornitologist
ornitology
research
robin
scale
school
scientist
show
showing
small
sparrow
spring
thrush
wild
wildlife
wing