The Peregrine Falcon, once numerous throughout North America, could possibly become extinct. This is due to the effects of chemical pesticides such as DDT (which has been banned from the United States and Canada but not in all countries). The Peregrine Falcon population has suffered a dramatic decline over the past decades, and is presently on the list of endangered species in both Canada and the United States. Endangered throughout Canada. Populations in southern Canada …showed first 75 words of 225 total…

…showed last 75 words of 225 total…by a variety of animals, then passed on up through the food chain to birds of prey. The residues collect in the birds fat and eventually interfere with reproduction, causing thin eggshells and dead embryos. Population recovery in Alberta is slow in spite of intensive management programs and reduced pollutant residues in falcons and their prey. It is illegal to kill or disturb peregrine falcons or their nesting areas in Canada and the U.S.