英文關鍵字
animal
animals
avian
background
beach
beak
beautiful
bernicla
bird
birding
birds
black
blue
branta
brent
britain
british
coast
dark
england
estuary
europe
feathers
feeding
flapping
flock
fre
freshwater
geese
goose
group
lake
large
migration
migratory
natural
nature
ornithology
other
outdoor
outdoors
preening
standing
video
wader
wading
water
waterfowl
white
wild
wildlife
wing
wings