英文關鍵字
baltic
bird
birdwatching
boreal
environment
estonia
estonian
european
forest
grey
growth
nature
old
ornithology
outdoors
owl
perched
predator
prey
primeval
pristine
raptor
resting
sleeping
strix
summer
ural
uralensis
woodland
英文關鍵字
baltic
bird
birdwatching
boreal
environment
estonia
estonian
european
forest
grey
growth
nature
old
ornithology
outdoors
owl
perched
predator
prey
primeval
pristine
raptor
resting
sleeping
strix
summer
ural
uralensis
woodland