EDP Foz-Tua: Terrestrian Birds (count points) – Compensatory Measures Program, MC46B (Management of Raptors’ Feeding Habitats) [2018-19]

Study Extent

The data were collected within a 5-km buffer around the two territories of the Bonelli’s Eagle (Aquila fasciata) in lower valley of the River Tua (Northeast Portugal), up to 45 km from the mouth, in the municipalities of Alijó, Carrazeda de Ansiães, Murça and Mirandela.

Sampling

Sampling was designed to compare the abundances of the target species (and, in general, of the whole local bird community) inside (“intervention” points) and outside (“control” points) the areas were actions of the Compensatory Measure MC46B took place, in the known breeding territories of the Bonelli’s Eagle in the lower Tua valley. A total of 120 sampling points distributed in pairs (one “intervention”, one “control”) were set (20 in deforested areas, 20 in feeders/drinkers, 20 in artificial shelters, and the respective controls), which are to be surveyed in the long term. All points were sampled in the winter, in the early morning or late afternoon, every two years. Each sampling event had a duration of 10 minutes, in which all birds seen or heard in three bands of 50m around the point (<50 m, 50-100m, >100m) were recorded. Species identification and assessment of age and sex (when possible) were made “in loco”, with the help of appropriate field guides.

Quality Control

All observations were made by qualified technicians

Method steps

1. To be completed

The taxonomic coverage of this dataset spans 1 phylum, 1 class, 10 orders, 25 families, 56 genus and 65 species.

1. Animalia
   rank: kingdom
2. Chordata
   rank: phylum
3. Accipitriformes
   rank: class
4. Bucerotiformes
   rank: class
5. Columbiformes
   rank: class
6. Cuculiformes
   rank: class
7. Falconiformes
   rank: class
8. Galliformes
   rank: class
9. Passeriformes
   rank: class
10. Pelecaniformes
    rank: class
11. Piciformes
    rank: class
12. Suliformes
13. Accipitridae
    rank: family
14. Upupidae
    rank: family
15. Columbidae
    rank: family
16. Cuculidae
    rank: family
17. Falconidae
    rank: family
18. Phasianidae
    rank: family
19. Aegithalidae
    rank: family
20. Alaudidae
    rank: family
21. Certhiidae
    rank: family
22. Cetiidae
    rank: family
23. Corvidae
    rank: family
24. Emberizidae
    rank: family
25. Fringillidae
    rank: family
26. Hirundinidae
    rank: family
27. Laniidae
    rank: family
28. Motacillidae
    rank: family
29. Muscicapidae
    rank: family
30. Paridae
    rank: family
31. Passeridae
    rank: family
32. Phylloscopidae
    rank: family
33. Prunellidae
    rank: family
34. Regulidae
    rank: family
35. Sittidae
    rank: family
36. Sturnidae
    rank: family
37. Sylviidae
    rank: family
38. Troglodytidae
    rank: family
39. Turdidae
    rank: family
40. Ardeidae
    rank: family
41. Picidae
    rank: family
42. Phalacrocoracidae
    rank: family

The data were collected within a 5-km buffer around the two territories of the Bonelli’s Eagle (Aquila fasciata) in lower valley of the River Tua (Northeast Portugal), up to 45 km from the mouth, in the municipalities of Alijó, Carrazeda de Ansiães, Murça and Mirandela.