The Decline of Barn Swallows Pat Bumstead March 8, 2012 February 19, 2012Bird Conservation Canada, Conservation, Songbirds barn swallow decline, insectivorous bird decline in canada Vancouver Avian Research Centre Vancouver, BC, Canada www.birdvancouver.com <http://www.birdvancouver.com> Continue reading Share this:TwitterFacebookMoreLinkedInPinterestEmailRedditTumblr