nesting swan. mute swan, cygnus olor, perched on nest built on large reeds mound. beautiful white bird warms up eggs in nest.

america animal apollo bank beak beautiful bill bird birdwatching britain canada cygnet cygnus czech eggs england europe feather france germany goose green habitat lake love mound mute natural nature neck nest olor ornithology poland pond protection reed river spain spring summer swamp swan sweden water waterfowl white wild wildlife wings