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Ross's Goose (Anser rossii)Where and when to see it in the UK

Winter visitor · reporting peaks November to February · Ducks, Swans, and Geese · BOU category AE*

Records to 2026-08-16 · build 2026-08-31

Ross's Goose (Anser rossii)
Andrew C, CC BY 2.0, via Wikimedia Commons
Peak months
Ross's Goose: relative reporting rate by 10 km square, September

Contains OS data © Crown copyright and database right 2026 (grid squares, place names from OS Open Names). Northern Ireland place names: OSNI Open Data, OGL v3.0. County and country boundaries: Office for National Statistics, Open Government Licence v3.0. Coastline: Natural Earth. Bird records from the data partners listed here.

Ross's Goose has been recorded in 77 of the 2,971 10 km squares covering UK land (3%) in records to 2026. Winter visitor in the UK. Its strongest squares are in England, Scotland and Wales. Reporting peaks in November to February.

Conservation status: Least Concern (IUCN Red List, LC)
View on the IUCN Red List
Relative to this species' best squares (how classes are calculated)
Very high
100% or more of visits
High
4% to 100%
Moderate
<1% to 4%
Low
under <1%
Surveyed, not recorded
at least 20 qualifying visits, no record
Insufficient records
too few visits to say
Lighter fill
Few visits, lower confidence
Small dot
Occasional: a single record, or out of season

Seasonality

Reporting rate by month, relative to the peak month
MonthRelative to peakShare of visitsTypical class
January 98%<1%Low
February 100%<1%Moderate
March 46%<1%Very high
April 8%<1%Very high
May 8%<1%Moderate
June 7%<1%Moderate
July 9%<1%Very high
August 29%<1%Low
September 57%<1%Very high
October 66%<1%Very high
November 85%<1%High
December 98%<1%Moderate

Squares with the highest reporting rate in January

SquareWhereShare of visitsClass
SD32Lancashire, England100%Very high
TF93Norfolk, England100%Very high
TG42Norfolk, England100%Very high
TM49Norfolk, England100%Very high
TQ58Havering, England100%Very high
SO70Gloucestershire, England21%High
NS57East Dunbartonshire, Scotland5%High
SP41Oxfordshire, England2%Moderate
ST58South Gloucestershire, England<1%Moderate
SD31Lancashire, England<1%Moderate

Spotted an error in a square? Report it and it goes into the review queue. Read the methodology for how classes, flags and sensitive-species rules work. Data to 2026.