The Orchard Birds of an Illinois Summer

Abstract

The widely separated residences of the present authors, one of us living in Maine and the other in Illinois, and the many engrossing preoccupations of both, have made it impossible until now for us to have the personal conferences or to provide for the cooperation necessary to a complete treatment of our subject ; and it is with pleasure that we at last find ourselves in a position to work together through the mass of tables long ago made ready, and to avail ourselves, in their discussion, of the copious field notes and valuable reminiscenses of Professor Gross, often quite essential to an interpretation of our data. We now hope to prepare, without undue delay, a series of papers, the first of which is here presented.