Raptors were counted at 22-year interval on an area of 90 km2 located in two mesoregions, Rawska Upland and Białobrzeska Lowland (51041’N, 20043’E). In 1981, 5 species of raptors and one pair of Ravens Corvus corax were nesting, while in 2003, 6 species of raptors and one pair of Ravens. Sparrow Hawk Accipiter nisus (6.7 p/100 km2) was a new breeding species in 2003. After 22 years, the density of raptors increased more than three times, from 17.5 to 56.1 p/100 km2, and that of Raven from 2.2 to 4.4 p/10 km2 in 1981 and 2003, respectively. The density of Marsh Harriers Circus aeruginosus increased 8 times, Buzzards Buteo buteo 3.5 times, Kestrels Falco tinnunculus 3 times, and Goshawks Accipiter gentilis remained at a similar level. Also Hobby Falco subbuteo nested in the study area - one pair in 1981 and two pairs in 2003.