Figure 2 in The Red-footed Falcon Falco vespertinus population in the Danube Delta and its habitat selection for breeding

Figure 2. Relationship between the presence of a breeding population of RfF and explanatory variables selected. The graphics show the relationship between RfF nest presence and (a) the mean temperature of the warmest quarter, (b) the precipitation of the warmest quarter, (c) the number of patches of habitat in 3000 m radius from the nest, (d) the percent of open habitats in 3000 m radius from the nest, (e) the type of nest used (colonial rook nest or solitary magpie and hooded crow nest), (f) the Simpson index.