Home ranges of common buzzards are generally . The size of breeding territory seem to be generally correlated with food supply. In a German study, the range was with an average of . Some of the lowest pair densities of common buzzards seem to come from Russia. For instance, in Kerzhenets Nature Reserve, the recorded density was 0.6 pairs per and the average distance of nearest neighbors was . The Snowdonia region of northern Wales held a pair per with a mean nearest neighbor distance of ; in adjacent Migneint, pair occurrence was , with a mean distance of . In the Teno massif of the Canary Islands, the average density was estimated as 23 pairs per , similar to that of a middling continental population. On another set of islands, on Crete the density of pairs was lower at 5.7 pairs per ; here buzzards tend to have an irregular distribution, some in lower intensity harvest olive groves but their occurrence actually more common in agricultural than natural areas. In the Italian Alps, it was recorded in 1993-96 that there were from 28 to 30 pairs per . In central Italy, density average was lower at 19.74 pairs per . Higher density areas are known than those above. Two areas of the Midlands of England showed occupancies of 81 and 22 territorial pairs per . High buzzard densities there were associated with high proportions of unimproved pasture and mature woodland within the estimated territories. Similarly high densities of common buzzards were estimated in central Slovakia using two different methods, here indicating densities of 96 to 129 pairs per . Despite claims from the study of the English midlands were the highest known territory density for the species, a number ranging from 32 to 51 pairs in wooded area of merely in Czech Republic seems to surely exceed even those densities. The Czech study hypothesized that fragmentation of forest in human management of lands for wild sheep and deer, creating exceptional concentrations of prey such as voles, and lack of appropriate habitat in surrounding regions for the exceptionally high density.