Ring-necked Duck Aythya collaris

This North American species is a rare but regular visitor to the UK.

Ring-necked Duck (with Tufted Ducks), Caerlaverock (Dumfries & Galloway, UK), 28th December 2015

Ring-necked Duck, Marazion (Cornwall, UK), 1st October 2005

same Ring-necked Duck, Marazion (Cornwall, UK), 4th October 2005

Ring-necked Duck (with Tufted Duck), Low Barns (County Durham, UK), 9th February 2023

Ring-necked Duck, Malthouse Broad (Norfolk, UK), 24th December 2011

Ring-necked Ducks, Wasa Lake (British Columbia, Canada), 18th September 2006

On this individual the white at the base of the bill appeared to be restricted to the top of the bill which made me wonder if it could be impure, but I could see no other indications to suggest it was a hybrid. Apparently first-winters can show reduced white on the bill so this may be the explanation, though I saw another first-winter drake the same day (Caerlaverock, above) and that still showed a limited amount of juvenile feathering (e.g. on the flanks) but had a more fully white surround to the base of the bill.

Ring-necked Duck (with Tufted Ducks), Auchenreoch Loch (Dumfries & Galloway, UK), 28th December 2015

Ring-necked Duck, Milton Loch (Dumfries & Galloway, UK), 28th December 2015

Ring-necked Duck, Hoveton Little Broad (Norfolk, UK), 5th February 2011

I've rarely come across this this species in captivity, but here are a pair that were behind bars (or rather fences).

captive Ring-necked Ducks, private collection at Wereham (Norfolk, UK), 5th May 2017