Interesting Mute Swan family.

During today’s count, the family of Mute Swans that bred across the river from KFB came into the project giving me a chance to take some poor photos of the family. I wanted to do this because one of the cygnets is white rather than the normal dirty grey/brown. This is known as a Polish morph and happens occasionally in Mute Swans and we sometimes get them in Cambridgeshire. 
​Bruce

The female is on the left with the "Polish morph" between its two siblings.

The "Polish morph" is second from the left. Here the cygnets are 14/15 weeks old.