LYNN M. STONE / Black swan swimming {Cygnus atratus} C

Pete Oxford / Pair of Black swans {Cygnus atratus} Tasmania, Australia

Loic Poidevin / Black Swans (Cygnus atratus) foraging in water, Marsh of Ile d'Olonne, Vendee, France. July.

Nick Garbutt / Black-necked swan (Cygnus melancoryphus) pair in courtship on upland lake. Torres del Paine National Park, Patagonia, Chile. November 2018.

Oscar Dewhurst / Mute swan (Cygnus olor) cygnet swimming, cocking head. Barnes, London, England, UK. April.

Andy Rouse / Mute swan (Cygnus olor) stretching wings on water. In morning light, Wales, UK. February.

Andy Rouse / Mute swan (Cygnus olor) stretching wings on water. In morning light, Wales, UK. February.

Nigel Cattlin / Yellow-tail moth (Euproctis similis) caterpillar on Hawthorn (Crataegus monogyna) leaf, a minor garden and nursery pest. England, UK.

Ernie Janes / Mute swan (Cygnus olor) attacking Canada goose (Branta canadensis) watched by Coots (Fulica atra) Fleet lagoon, Dorset, England, UK, June.

Will Watson / Llangorse Lake SSSI and SAC featuring Mute Swans (Cynus olor) and Cormorants (Phalacrocorax carbo) and Mynydd Troed in the background, Brecon Beacons National Park, Breconshire, Wales, UK, Spetember 2...

Loic Poidevin / Black swan (Cygnus atratus) swimming in marsh on lle d'Olonne, Vendee, Pays-de-la-Loire, France. April

Holger Doernhoff/ BIA / Black Swan (Cygnus atratus), North Rhine-Westphalia, Germany