Learn More
The purpose of this study was to examine the effects of diazinon and acephate applications to ornamental trees on the breeding behaviour and productivity of the American robin and to measure the effect of repeated chlorpyrifos spraying on robin productivity. No cases of adult or juvenile mortality were recorded, and nestling production was not affected.(More)
We report the observation of four gyrfalcon (Falco rusticolus) nests and several adults south of the previously recognized southern limit of the species’ breeding distribution in eastern North America. Our southernmost observation extends the known breeding range approximately 400 km to the south. The northern forest tundra biome could delineate the(More)
  • 1