J. Vanderwinden, THE BREEDING POPULATION OF THE RED-FOOTED FALCON (FALCO VESPERTINUS) IN THE SIVASH, UKRAINE, Journal fur Ornithologie, 136(3), 1995, pp. 285-288
The breeding numbers and habitat choice of Red-footed Falcons were stu
died in the Sivash, Ukraine in May 1992. About 40% of the area and 32.
5 km of hedgerows were counted. Red-footed Falcons were breeding dispe
rsed and solitary or in small colonies of less than five pairs. Most p
airs were breeding in hedgerows with on average 1-2 pairs per km. A to
tal of 250 to 500 pairs is estimated to breed in the Sivash area.