英文關鍵字
advantage
background
birds
black
chance
cloud
conservation
crow
environment
feathers
fheaven
flight
flock
gray
grey
many
opportunistic
scavenger
sky
vultures
weather
wild
wilderness
wings
wingspan
英文關鍵字
advantage
background
birds
black
chance
cloud
conservation
crow
environment
feathers
fheaven
flight
flock
gray
grey
many
opportunistic
scavenger
sky
vultures
weather
wild
wilderness
wings
wingspan