Eighteen dead and ill birds which were found on baited plots proved to be affected by insecticide poisoning. One hundred and twenty-two other birds were found dead or affected in baited plots, but the cause of death or illness could not be proved. One muskrat, three skunks, and one field mouse were found dead in the baited plots, but were deteriorated. Eight dead birds were found in the control (unbaited) plots. The total game bird mortality in baited plots was 23.4 per cent while it amounted to only 10.1 per cent in control plots. Per cent mortalities of song birds and predatory birds were not determined.