英文關鍵字
abstract
aerial
animal
antenna
beak
bird
black
city
contrast
dark
discussion
dove
doves
fauna
feather
flight
graphic
group
high
home
isolated
legs
life
looking
migrant
nature
obsolete
outdoor
over
perching
radio
retro
roof
rook
sailing
scene
signal
silhouette
television
transmission
urban
waves
white
wildlife
wing