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  1. Mute Swan (Cygnus olor) pair courting, Europe
  2. Mute Swan (Cygnus olor) pair courting, Europe
  3. Mute Swans (Cygnus olor) three cygnets on parent's back, Europe
  4. Milled wood planks in a stack, Europe
  5. Ancient blue iceberg, detail, Antarctica
  6. Mute Swan (Cygnus olor) cygnet under its parent's wing, Europe
  7. English Oak in autumn, Europe, Asia and north Africa introduced into North America