英文關鍵字
american
animal
another
avian
beak
beautiful
beauty
bicolor
bird
birds
blue
branch
classic
colorful
conservation
disturbing
eco
ecology
environment
fauna
feathers
flight
floof
flys
iridescent
left
male
migratory
nature
north
ornithology
pantone
passerine
perch
perched
plumage
preens
right
sky
songbird
sound
species
spring
swallow
tachycineta
tree
vertebrate
white
wild
wildlife
wing
wings
wood