英文關鍵字
animal
background
beautiful
bird
birds
city
cold
common
copy
day
drake
duck
ducks
early
environment
fauna
feather
freedom
green
group
ice
lifestyle
mallard
marriage
melts
movement
natural
nature
ornithology
outdoor
outdoors
park
river
season
space
spend
spring
sunny
swim
water
waterfowl
wild
wildlife
winter