Pair of aquatic Grebe birds build nest of grass in wetland pond water

grebe bird pair animal nest aquatic pond grass wetland water nature wildlife wild mate birdwatching ornithology natural outdoor surface waterfowl fowl crested blacknecked build swim float lake habitat fauna copy space avian waterbird aquatic bird podiceps nigricollis podiceps nigricollis breed eared grebe plumage feather beak bill construct reflect vegetation ripple migratory