Plumage aberrations in birds do not generally create a lot of interest although I think a few people have been to see the Coal Tit.
Collecting aberrations used to be all the rage for butterfly collectors and still generates quite a bit of interest amongst entomologists.
I have struggled to see anything today but 200+ Brambling on Screetham Lane is a decent flock.
|Leucistic Robin (James Butler)|
|Leicistic Coal Tit (Ken Smith)|