Abstract
The effectiveness of "Birdershot" (a fumigant for repelling birds-active component: p-dichlorobenzene) as a bird repellent was assessed for captive feral pigeons, Columba livia in two-choice experiments. When food sites treated with and without (control) the fumigant were placed 10m apart, the pigeons preferred to feed at the non-treated food site. This effect lasted for a minimum of 8 days. However, when a food site treated with the fumigant was placed only 2.5m away from a non-treated food source, the pigeons showed no avoidance of the fumigated food site
