GSMP survey dates
Coordinated census dates 2020/21
Pink-footed Goose: 17/18 October, 21/22 November and 13/14 March
Iceland Greylag Goose: 21/22 November and 13/14 March
The above dates include an additional spring count, following the three-yearly cycle reinstated in 2012. The aim of this count is to map the distribution of birds during this critical period in their life cycle, when the are accumulating body reserves for migration and breeding.
Ideally all sites supporting Pink-footed Geese should be covered during the October and November counts, whilst those holding Iceland Greylag Geese should be counted in November.
At sites where British Greylag Geese occur together with Icelandic birds, we encourage counters to undertake a count during September so that IGC counts can be adjusted to take account of the likely number of British birds present.
Coordinated count dates for winter 2020/21
or the nearest data possible, preferably within three days either side
Counts of both species can be made during each month; however, for Bewick’s Swan, please focus on December (to coordinate with the international assessment) and January, and for Whoopers, please focus on January.
Assessments made at any other time during the autumn/winter are also welcome.
The survey period for age assessments various between species; however, surveys are mostly carried out during the winter.
|Iceland Greylag Goose||Oct – mid Nov||care needed with age identification|
|British Greylag Goose||Aug – Sep|
|Pink-footed Goose||mid Sep – mid Nov|
|Bean Goose||Oct – Nov|
|European White-fronted Goose||Oct – Jan||focus on Jan|
|Greenland White-fronted Goose||Oct – Jan||focus on Dec|
|Dark-bellied Brent Goose||Sep – Mar||focus on Oct – Nov|
|Light-bellied Brent Goose (both populations)||Sep – Mar||focus on Oct – Nov|
|Barnacle Goose (both populations)||Oct – Dec|
Coordinated census dates for 2020/21
The most important international census periods to cover for Greenland White-fronted Geese are:
13-17 March 2021
Counts from all other dates and times are very much welcome, but for the monthly counts we especially appreciate counts in the following periods:
14-18 November 2020
9-13 January 2021
06-10 February 2021
The ISC takes place every five years. The most recent was in January 2020.
The next census is due to take place in 2025.