Since hybridization in birds is so rare in nature, it is unusual to have the opportunity to study what happens when two species interbreed. Blue-winged Warblers (Vermivora pinus) and Golden-winged Warblers (V. chrysoptera) ...

With the coming of spring there is an enthusiastic revival of interest in people for the out-of-doors and, not infrequently, a more than casual interest in the pursuit of the first flowering plant. For the stay-at-home ...

The Ovenbird was selected for intensive study at the UWM Field Station for a variety of reasons. First, it is closely adapted in all respects-morphological, physiological, behavioral- to the upland forest environment, ...

The Goldenrods, with their abundance and diversity, produce one of the most brilliant natural wildflower displays in our area from mid-August to November. In North America there are about one hundred species of these plants ...

The winter trapping program was begun in the winter of 1965-66 and was expanded and conducted more systematically in 1966-67 and 1967-68. The primary objective has been to determine accurately the daily and seasonal changes ...

The Benedict Prairie Unit of The University of Wisconsin-Milwaukee Field Stations consists of about six acres, actually 100 feet wide and one half mile long, on what was once a railroad right of way on the old Kenosha-Silver ...