英文關鍵字
animal
autumn
big
bird
birds
black
blue
cable
coast
color
crow
dawn
dove
electricity
film
flew
flock
fly
flying
freedom
fuel
generation
group
gulf
high
horizontal
insect
insects
large
line
meeting
migration
morning
nature
night
people
pigeon
pole
power
pylon
raven
ravens
ravensymon
resting
row
rowing
season
silhouette
sitting
sky
slovenia
songbird
sparrow
spring
states
striped
sunrise
sunset
supply
swallow
tower
voltage
wildlife
wire