A party of four swans have favoured a field just north of the Dogs Trust in Sadberge since December. The group is made up of 3 Whooper Swans - one adult and two juveniles along with one adult Bewick's.
Although the two species have extensive overlap, there are still no definitive cases of hybridisation in the wild. Hybrid offspring would be difficult to recognise due to the similar morphology and bill markings. The book 'Bewick's Swan' by Eileen Rees describes incidences of other Bewick's hybrids though.
Family party of Whooper Swans, Sadberge
Bewick's and Whooper together
Bewick's Swan, Sadberge
Whooper Swan, Sadberge
the Gigrin Black / Black-eared Kite revisited
9 hours ago