英文關鍵字
yellow-legged
gull
larus
michahellis
seabird
animal
fauna
bird
nature
wild
biological
diversity
environment
environmental
ecology
zoology
summer
sunny
daylight
horizontal
black
sea
europe
bulgaria
balkans
shore
coast
town
urban
bright
beach
ornithology
wildlife
plumage
water
feather
feathers
blue
horizon
widespread
forager
sitting
wooden
pillars
calm
burgas
background