adult

animal

approach

aquatic

background

bird

birdwatching

breeding

color

evening

feather

flight

flock

gliding

group

gull

island

lake

landing

landmass

lens

lighting

natural

nature

nest

ornithology

park

people

pond

real

reservation

reserve

rest

river

scene

scenic

sea

shore

sunset

telephoto

time

water

waterbird

white

wildlife

wildness

wingspan

winter

zoom