This page presents the current statistics on the BOS Monthly Records database. Note that since 2011 the database includes non-member records submitted via the BTO BirdTrack system. The charts show the summary for all records received, except where specifically noted.

Our electronic records start from 1982 and we have currently have over 375,000 records (up to end 2019). The following charts present the annual status of the records, showing:

  • The number of records submitted by BOS members and from other sources (total). Note that duplicate sightings are omitted, i.e. the same bird seen at the same site on the same day.
  • The total number of species recorded each year. Statistics for the years prior to 1982 come from the Annual Reports. The dashed line is the linear trend. The dip for 1982-83 is in part due to the switch to the electronic recording system.
  • The number of grid squares records come from. Note that the BOS surveys 1200km2, so the charts show that recording comes from over 50% of the BOS area, a remarkably good rate of coverage
  • The number of named sites. Site names have been standardised since 2016 which allows us to better assess the number of sites visited.

Updated 26th March 2020

Due to the current Covid 19 outbreak, the BOS has cancelled the April and May indoor meetings. If the current travel & social distancing restrictions remain in place or increase, we will also have to cancel the outdoor meetings scheduled for June through August. Read more ...

This meeting has been postponed due to the COVID-19 restrictions. We will reschedule this meeting when social gathering restrictions have been lifted.

Ecology and conservation of the Sociable Lapwing. -  Rob Sheldon

Please note this is 1 week earlier than usual because of Easter

The Sociable Lapwing has suffered huge declines in range and population and is now listed as critically endangered.  RSPB is working with a number of partners on the breeding grounds in Kazakhstan and on the migration routes and wintering areas in the Middle East and Africa to work out why this enigmatic and beautiful species has declined. Read more ...

COVID-19 Update 25th March 2020: This survey will not go ahead this year due to government travel restrictions.

A survey of breeding birds, conducted using 3 visits over 3 months to a random 1km square. Read more ...

Website designed and built by Garganey Consulting