英文關鍵字
algae
algal
animal
background
beak
beautiful
bird
bloom
blurred
branch
butorides
close
closeup
color
destruction
eating
ecosystem
environmental
fertilizer
fish
focus
green
habitat
heron
hunting
isolated
lake
landscape
lens
lighting
natural
nature
ornithology
outdoor
outdoors
phytoplankton
pollution
pond
predator
real
reserve
selective
striated
summer
surface
swamp
telephoto
time
view
virescens
water
white
wild
wildlife