Common Goldeneye Bucephala clangula

In the UK where this is the only species of goldeneye that you're likely to see, the species is more commonly known simply as Goldeneye.

Common Goldeneye, Swanton Morley fishing lakes (Norfolk, UK), 27th November 2010

Common Goldeneyes, Lackford Lakes (Suffolk, UK), 5th April 2008

Common Goldeneye, Lackford Lakes (Suffolk, UK), 23rd February 2019

Common Goldeneye, Loch Ryan (Dumfries & Galloway, UK), 29th December 2011

Common Goldeneye, Brancaster Staithe (Norfolk, UK), 7th March 2016

Common Goldeneye, Burnham Overy (Norfolk, UK), 11th January 2014

second Common Goldeneye, Burnham Overy (Norfolk, UK), 11th January 2014

Common Goldeneye, Brancaster Staithe (Norfolk, UK), 4th February 2008

Common Goldeneyes, Barton Broad (Norfolk, UK), 26th December 2009

Common Goldeneye, Brancaster Staithe (Norfolk, UK), 10th February 2011

Common Goldeneye, Brancaster Staithe (Norfolk, UK), 8th March 2005

Common Goldeneyes, Snettisham (Norfolk, UK), 8th December 2012

Common Goldeneyes, Burnham Overy (Norfolk, UK), 12th January 2013

Common Goldeneyes, Holkham (Norfolk, UK), 22nd January 2005

Common Goldeneye, Kilconquhar Loch (Fife, UK), 7th February 2023

Common Goldeneyes, Lochmaben (Dumfries & Galloway, UK), 29th December 2003

Common Goldeneyes (with Tufted Ducks and Eurasian Coot in the foreground), Nar Valley Fishery (Norfolk, UK), 23rd January 2017

Common Goldeneye, Swanton Morley fishing lakes (Norfolk, UK), 24th March 2008

Common Goldeneye, Swanton Morley fishing lakes (Norfolk, UK), 27th February 2011

Common Goldeneye, Swanton Morley fishing lakes (Norfolk, UK), 4th November 2007

Common Goldeneyes, Titchwell (Norfolk, UK), 3rd January 2008

Common Goldeneye, Titchwell (Norfolk, UK), 9th February 2008

Common Goldeneye, Whitlingham Country Park (Norfolk, UK), 1st January 2009

Common Goldeneyes, Wick (Highland, UK), 24th February 2012

Common Goldeneyes, Brancaster Staithe (Norfolk, UK), 20th November 2007

Common Goldeneyes, Brancaster Staithe (Norfolk, UK), 23rd November 2007

Common Goldeneyes Swanton Morley fishing lakes (Norfolk, UK), 18th October 2008

Common Goldeneye, Wiggenhall (Norfolk, UK), 10th January 2009

Common Goldeneye, Nar Valley Fishery (Norfolk, UK), 1st February 2009

Common Goldeneyes, Martham Broad (Norfolk, UK), 29th November 2009

The following photos were all taken in wildfowl collections and I assume all the birds are captive (although in some cases it is possible that wild birds joined the captive wildfowl there).

captive Common Goldeneyes, Pensthorpe (Norfolk, UK), 15th May 2023

captive Common Goldeneyes, Pensthorpe (Norfolk, UK), 5th February 2022

captive Common Goldeneyes, Pensthorpe (Norfolk, UK), 9th March 2014

captive Common Goldeneyes, Grange-over-Sands collection (Cumbria, UK), 28th December 2011

captive Common Goldeneyes, Blakeney Quayside collection (Norfolk, UK), 15th January 2022

captive Common Goldeneye, Blakeney Quayside collection (Norfolk, UK), 15th October 2011

captive Common Goldeneye, Blakeney Quayside collection (Norfolk, UK), 17th September 2011

captive Common Goldeneye, Blakeney Quayside collection (Norfolk, UK), 24th September 2018

captive Common Goldeneye, Blakeney Quayside collection (Norfolk, UK), 27th October 2018

captive Common Goldeneye, Blakeney Quayside collection (Norfolk, UK), 6th October 2012

captive Common Goldeneye, Blakeney Quayside collection (Norfolk, UK), 18th March 2019

captive Common Goldeneyes, Blakeney Quayside collection (Norfolk, UK), 17th March 2019