COLOSS survey 2020/2021 – by Dr Mary Coffey

COLOSS Survey 2020/2021 – by Dr Mary Coffey


Dear Beekeeper,

The annual COLOSS survey on winter colony losses is now available for completion online by
clicking the hyperlink:

Alternatively, it can be completed manually by printing this PDF file: Coloss Questionnaire 2021

Completed surveys should be returned to:

Dr John Breen,
Bee Survey,
University of Limerick,

Closing date is 1st June 2021

A little background about the annual COLOSS survey on winter colony losses

This annual COLOSS Survey is a key task in the National Apiculture Programme and is part of an international survey on monitoring winter colony losses across Europe and beyond. To ensure that the data collected is representative of Irish beekeeping, it is pertinent that as many beekeepers as possible complete the Survey.

Irrespective of the number of colonies you have, or the number of years you are beekeeping, please consider completing the Survey.

It is a relatively simple survey which aims to quantify winter colony losses as well as identifying possible causes. The preliminary analysis of the Irish data from 2019/2020 COLOSS survey is linked here.

The format and time frame for the dissemination of this year’s  survey remains the same, therefore like previous years, the survey will be available online on the National Apiculture Programme web page at

The success of this survey depends on you the beekeeper, your participation is greatly appreciated. 

Thank you
Mary F Coffey & John Breen