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Abundance (number of nesting-sites) and richness (number of species) of cliff-nesting raptors and the common raven in Teno, Tenerife, Canary Islands, according to 1 × 1 km grid. Abundance ranged between 0 (without point) and to 8 pairs (the largest points) and richness between 0 (without point) to 4 species (the largest points).
