Cover
Front Matter
Bird Observer
Back Matter
Bird Observer
Contents
Biodiversity Day
Marjorie W. Rines
Evolutionary Lag in Cowbird Nestling Recognition by Ovenbirds
F. E. Wasserman, M. J. Hersek, M. A. Frankel, J. A. Cigliano, D. C. Morimoto, and J. Moran
Sandwiches and Sparrows: Lunch-hour Birding in Lexington
Marjorie W. Rines
Pine Grosbeaks Eating Elaeagnus Umbellata Seeds
Alan E. Strauss
Book Review: How to Spot an Owl; How to Spot Hawks and Eagles by Patricia Sutton and Clay Sutton
Mark Lynch
Bird Sightings: May-june 1998 Summary
Marjorie W. Rines, Simon A. Perkins, and Robert H. Stymeist
About the Cover: Yellow-rumped Warbler
W. E. Davis Jr.
About the Cover Artist
Matthew L. Pelikan
At a Glance
Wayne R. Petersen