wild marsh fog and waterfowl

avian background biology bird birding birds circadian cold conservation covered cycle distance distant dry ducks ecology feathered flap flight flock flocking flying fog foggy form formation frost frozen gamebirds gathering geese goose grasses ground group habit hill hills klamath lake lower marsh migrate migrates migration migratory move national ornithology pattern reeds reflection refuge resting rhythm season seasonal shape shine silhouette silhouettes sky snow soar swan teamwork tule tules vast waterfowl wetland wetlands wild wilderness wildlife winged wings winter wonder