Michael PattenMichael A. Patten is Director of Research at the Sutton Avian Research Center, University of Oklahoma, and is a Research Associate at the San Diego Natural History Museum. Guy McCaskie is a civil engineer and editor of the four seasonalreports for the Southern Pacific Coast Region in North American Birds. Philip Unitt is editor of the journal Western Birds and Collection Manager for the San Diego Natural History Museum's department of birds and mammals. Read More Read Less