Black grouse annual lek surveys in Dumfries and Galloway, 1980-2011
This dataset is intended to provide an indication of the numbers and distribution of black grouse in the Dumfries and Galloway region of Scotland, from 1980 onward. Black grouse is a species of conservation concern and as such has been monitored closely in the Dumfries and Galloway area. In 2006 and 2007, records collected by the Southern Uplands Partnership are included. All other data were collected and collated by the RSPB. <br /><br />
Absence records are included, and denote areas that were surveyed where no black grouse were seen.
Suitable and potential habitats covering all areas of the Dumfries and Galloway region of Scotland were covered in this survey. The grid references shown in this dataset refers to the presence of a lek.
To establish long term trends of the numbers and distribution of Black Grouse in the Dumfries and Galloway regions of Scotland and to measure the response of black grouse to habitat management through recovery projects.
These data have been collected by highly trained field workers and the data are of high quality. These data have been mapped and checked for sensitivities and typographical/geographical errors.
One or two lek counts are carried out between the end of March and mid May at each site. These are co-ordinated counts that follow the survey methodology in Gilbert et al. Each count is carried out from one hour before dawn to one hour after. The counts are carried out using binoculars or a telescope from distances of 100-500m to avoid disturbance to the lek. The exact day depends on good weather; wet and windy mornings are avoided. Recording the number of cocks attending each lek gives an estimate of population size. <br /><br />
Brood counts take place between late July and early August. The area within a 1.5KM radius of the lek is searched using trained pointing dogs. The number of chicks recorded provides an estimate of the productivity for the year. The greater the number of broods located, the more reliable the productivity figure. <br /><br/>
Casual sightings from throughout the year and lek searches (grid squares searched for leks) are included as well.
The entries in this dataset are observations that have been made by a diverse group including RSPB staff, members of the public and Forestry Commission staff
Please acknowledge RSPB and the Southern Uplands Partnership in any use of the data.
Looking up... the number of records that can be accessed through the NBN Atlas. This resource was last checked for updated data on 21 Nov 2016. The most recent data was published on 21 Nov 2016.Click to view records for the Black grouse annual lek surveys in Dumfries and Galloway, 1980-2011 resource.