英文關鍵字
above
aerial
animal
avian
background
behavior
birds
blue
clouds
cranes
dance
display
flight
flock
fly
flying
formation
free
graceful
hundreds
lapse
migratory
nature
patterns
sandhill
sky
soar
swarm
swoop
time
timelapse
wild
wildlife
wings
英文關鍵字
above
aerial
animal
avian
background
behavior
birds
blue
clouds
cranes
dance
display
flight
flock
fly
flying
formation
free
graceful
hundreds
lapse
migratory
nature
patterns
sandhill
sky
soar
swarm
swoop
time
timelapse
wild
wildlife
wings