英文關鍵字
bank
beak
bird
birdlife
catch
catches
eat
egret
europe
fauna
feeding
fish
flying
grey
heron
hunt
legs
marsh
morning
motion
nature
plumage
prey
reeds
river
slow
small
summer
swallow
swallows
swamp
video
videos
wait
watching
white
wild
wildlife
wings
young