英文關鍵字
alpina
animal
beak
bellied
bernicla
bird
birds
black
blue
brant
branta
brent
britain
british
calidris
dark
dunlin
environment
eurasian
flight
flock
fly
flying
free
freedom
geese
goose
grey
gull
haematopus
knot
nature
ocean
ostralegus
oystercatcher
plover
pluvialis
portrait
sea
seagull
seagulls
sky
squatarola
water
white
wild
wildlife
wing
wings