We're oftentimes overwhelmed with the idea that the natural environment is in a state of seemingly unstoppable decline. One of the greatest causes is destruction of natural habitat. And, loss of nesting spaces for birds is a prime example of a major consequence. This site leads the visitor to a very simple solution that allows one to act locally while thinking globally. The Birdhouse Network...

The Northern Prairie Wildlife Research Center has recently made available this article in electronic format. Already published in print, this online article is now freely available on the Web. This article is on Mayfield estimates and is by Douglas H. Johnson and Terry L. Shaffer. Full text, figures, tables, appendices, and citations are provided.