asia
bird
blue sky
china
color image
ecology
ecosystem
environmental conservation
exotic birds
grassland
green
heilongjiang province
lake
meadow
national nature reserve
natural
natural landscape
natural monument
natural scenery
on vacation
outdoor
plants
reed marsh
rivers
scenery
sky
spectacular
summer
tourist attraction
travel
traveling
water meadow
wetland
white clouds
wild lotus
yanwodao wetland