Saw this duck at Connaught Water - Epping Forest, and were struggling to work out what is it. Can anyone ID it?
Thanks, Jonathan
Hi Jonathon, no wonder you were puzzled it had me scratching my head too. Never seen anything like it. However, after a bit of research I think it might be a variant of a South American duck called Ringed Teal. There's a variant known as a Blue-ringed Teal which seems to match your bird pretty well. It looks like it's been selectively bred for sale.
https://www.smithsnurseries.com/blue-ringed-teal-for-sale
and here which seems to indicate there's an orange as well as a blue variety.
http://norfolkwildfowl.co.uk/?p=ringed.teal
Possibly it's escaped from a breeder or someones collection.