Red-throated diver national surveys in Scotland - raw data
Red-throated divers are birds of conservation concern due to large declines in the 19th century. While the population increased in the 20th century, there was not considerable
Red-throated diver national surveys in Scotland - raw data
Red-throated divers are birds of conservation concern due to large declines in the 19th century. While the population increased in the 20th century, there was not considerable change to the breeding range. This dataset contains the results of systematic national surveys in 1994 and 2006. The dataset contains the raw data, i.e. un-interpreted red-throated diver sightings. As such, it does not report any indirect evidence that has been used to indicate presence in the 5km summary dataset, which is also available on the NBN. In addition to the data collected for the national surveys, this dataset also contains data collected on additional visits in the survey years. These data are either from sites that were not included in the surveys, or from sites visited outside the survey period. These data are flagged in the dataset. The surveys were carried out by the Royal Society for the Protection of Birds (RSPB) and Scottish Natural Heritage (SNH) under the Statutory Conservation Agencies and RSPB Breeding Birds Scheme (SCARABBS).
National surveys of the UK, with sightings in Scotland only. Positive records are mostly at 100m resolution, with some 1km records. Absence records are reported at 5km resolution.
These data have been gathered by trained field-workers and the data are of a high quality.
These data have been mapped and checked for sensitivities and typographical/geographical errors.
The surveys give a complete census of Shetland, Orkney, and a stratified sample of 5km grid squares in the rest of the known breeding ra