Cover
bo39-4-web.pdf
Bird Observer
Contents
The Duck Stops Here: Fall Migration Monitoring at Bunker Meadows
Ava Steenstrup and MaryAnn DeSisto
The Great English Sparrow War
Jim Berry
Nocturnal Flight Calls
Benjamin Van Doren
Field Notes: Leapfrog Foraging by Red-winged Blackbirds and Brown-headed Cowbirds
William E. Davis Jr.
About Books: Three’s Company
Mark Lynch
Bird Sightings: March/April 2011
Seth Kellogg, Marjorie W. Rines, and Robert H. Stymeist
About the Cover: Least Tern
William E. Davis Jr.
At a Glance: June 2011
Wayne R. Petersen