Red-breasted Merganser Mergus serrator

Red-breasted Merganser, Aultbea (Highland, UK), 15th March 2024

Red-breasted Merganser, Loch Fleet (Highland, UK), 24th February 2012

Red-breasted Mergansers, Snettisham (Norfolk, UK), 8th December 2012

Red-breasted Merganser, Tain (Highland, UK), 11th February 2024

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 3rd December 2010

Red-breasted Merganser, Burnham Overy (Norfolk, UK), 30th November 2013

Red-breasted Mergansers, Thornham (Norfolk, UK), 28th February 2009

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 10th February 2011

Red-breasted Mergansers, Burnham Overy (Norfolk, UK), 11th January 2014

Most of the Red-breasted Mergansers that I've seen have been in the UK but there is no significant variation across the entire global population (except that Greenland birds are reported to be slightly larger), so these from California are the same as the ones we get here (other than perhaps being a bit more sun-bleached).

Red-breasted Mergansers, South Bay, San Diego (California, USA), 20th April 2005

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 15th December 2010

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 16th December 2011

Red-breasted Mergansers, Llanfairfechan (Conwy, UK), 20th November 2005

Red-breasted Mergansers, Montrose (Angus, UK), 30th December 2013

Red-breasted Mergansers, Ormiscaig (Highland, UK), 15th March 2024

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 20th March 2008

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 21st December 2004

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 21st December 2004

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 1st December 2010

Red-breasted Mergansers, Prestonpans (East Lothian, UK), 8th February 2023

Red-breasted Mergansers, Brancaster Staithe (Norfolk, UK), 11th March 2010

Red-breasted Merganser, Aros Estuary, Mull (Argyll & Bute, UK), 12th June 2019

Red-breasted Merganser, Hodbarrow (Cumbria, UK), 28th December 2011

Red-breasted Mergansers, Loch Ryan (Dumfries & Galloway, UK), 30th December 2003