英文關鍵字
altitude
and
behaviour
bird
black
cairngorms
close
cloud
cloudy
cold
colour
dark
day
during
eating
environment
eyes
feathers
fogg
free
game
gamebird
glen
grouse
habits
heather
high
hill
lagopus
march
morning
moult
mountain
muta
national
park
plumage
portrait
ptarmigan
rock
running
scotland
scottish
slope
snow
spring
sunny
tail
walking
when
white
wild
wildlife
winter