英文關鍵字
america
animal
bird
birding
birdsong
brown
bud
call
calls
camera
canada
chipping
chirp
clip
close
cut
cute
cutout
domesticus
habitat
isolated
lens
male
mating
migration
morning
nature
north
note
one
outdoors
passer
season
singing
single
small
song
songbird
sound
sparrow
spring
sunlight
sunny
telephoto
tree
warbler
watching
weather
white
wild
wildlife