英文關鍵字
acrobatic
adult
aerodynamic
amazing
animal
background
barn
beak
beautiful
bird
birdwatching
blue
chicks
dart
dive
family
farm
fast
feeding
flight
fly
food
glide
insects
lake
landscape
light
natural
nest
over
pond
quick
reflection
ripples
river
splash
surface
swallow
swift
tail
water
wild
wildlife
wing
wings
young