英文關鍵字
animal
bay
beak
beautiful
birdhouse
birds
captivity
chicken
chirping
crane
disease
dock
duck
egg
feather
flock
flying
fowl
game
goose
graceful
hatch
hunting
lyme
migration
natural
nature
nest
ocean
pelican
pellet
perch
pier
preserve
protect
reserve
river
roost
sea
seagull
species
stream
swamp
swim
taxonomy
watching
water
wildlife
wings