英文關鍵字
wall
animal
bird
swallow
pendent
hang
adherent
attached
clinging
hooked
hanging
nature
build
nest
wild
wildlife
environment
clay
mud
closeup
fauna
natural
home
beak
barn
ornithology
birds
feather
outdoor
swallows
under
colorful
rural
wing
wings
birdnest
europe
roof
color
martin
spring
red
sitting
avian
black
season
architecture
flying
habitat