EDP Baixo Sabor: Exploration Phase - Cliff-nesting species: Breeding sites [2016-2020]

Study Extent

The data were collected within a 5-km buffer around the lower Sabor river and its main tributaries, from the river mouth up to 42 km upstream, in the municipalities of Torre de Moncorvo, Alfândega da Fé, Mogadouro, Macedo de Cavaleiros, Vimioso and Bragança.

Sampling

The dataset includes systematic observations of all nests detected in the breeding territories of each species. Nest surveys and assessment of the likelihood of breeding usage (confirmed, probable or abandoned) were carried out in confirmed and potential nesting areas (according to the indicative behavior of adults) close to nesting cliffs. Active nests were monitored each year until the end of the breeding period, with the aim of determining the number of flying chicks for each detected couple. For each nest found records were taken of its occupation and conservation status, number of eggs, chicks and fledglings. The number and behaviour of each flying individual detected (perched, flying – several types -, hunting, carrying material, in courtship or feeding chicks were also recorded. All identifications were made "in situ" with binoculars and telescope.

Quality Control

All individual identifications were performed by qualified technicians

Method steps

1. To be completed

The taxonomic coverage of this dataset spans 1 class, 3 orders, 3 families, 6 genera and 7 species.

1. Aves
   rank: class
2. Accipitriformes
   rank: order
3. Ciconiiformes
   rank: order
4. Falconiformes
   rank: order
5. Accipitridae
   rank: family
6. Ciconiidae
   rank: family
7. Falconidae
   rank: family

Data were collected in a 5-km buffer around the lower Sabor river and its main tributaries, from the river mouth up to 42 km upstream, in the municipalities of Torre de Moncorvo, Alfândega da Fé, Mogadouro, Macedo de Cavaleiros, Bragança and Vimioso.