In the area where I live the wiled life has since the 1980's, have diminished considerably and the local authority have been involved in a large cover-up, regarding pollution from a toxic incinerator in the area. That is the demise of every thing, we have the hiest cancer rate in the country the cement works that has been hear has polluted us for years this. I blame for the decline in the birds&the dee;s. and everything for miles and miles. their is over 100. of the original work force died with the cancer and hundreds of other things related to this type of pollution and (s.e.p.a.) allow it to go on they only monitor particle's to a size of Pm10, not Pm2.5 and smaller. It is the smaller particulates that are the killer. And if you check out what it states regarding toxic incineration, This is what is killing our environment. It kills humans, so what happens to smaller creatures is quite scare. http://www.flickr.com/photos/davet_herav/