Adult male Red-breasted Merganser (Mergus serrator) at Derwent Water, Cumbria - April 2011
Local Name (Japan): Umi-aisa (ウミアイサ) - "Sea merganser"/"Sea Autumn-Sand"
UK GREEN LIST / IUCN Red List: Least Concern
Red-breasted mergansers are the rarer species of "sawbill" found in the United Kingdom - they are far less numerous and more localised Goosanders - found more in the North and West of the country. They also Winter around the coast in other parts of the country. Smaller than Goosanders, the defining feature is the red neck of the name when comparing it against Goosanders. I first came across this species while intentionally looking for them in the lake district, but have subsequently had the odd distance view along the Kent coast.
Subspecies: none - monotypic
- Sighting Locations -
UNITED KINGDOM - A scarce and local breeding species (2,400 pairs) and uncommon Wintering species (9000 birds)
- A small flock seen on Derwent Water in April 2011. Also on the sea off North Kent in the Winter.
JAPAN - A Winter migrant
- TOKYO/HOKKAIDO 2014 TRIP: Seen on the sea in Akkeshi.
Further Notes: RSPB, Wikipedia, BirdGuides, BirdForum Opus, Arkive, IUCN Red List