In an examination of the causes of death of 36 Falco rusticolus islandus and 2 Falco rusticolus candicans from Iceland it was found that 12 birds had been shot, while 10 had died from various other injuries. Thirteen had died of infection with Capillaria contorta in the upper alimentary tract, and one of alkyl phosphate poisoning. The cause of death of two birds could not be determined.