Quarterly publication. This issue contains: The Black-crowned Night-Herons of Lake Calumet Part I: Population Trends and Nesting Ecology, Bluegill as Homebodies: Do Males Display Fidelity to Nesting Sites?, Contaminants in Tree Swallows, The Tree of Life Web Project, Species Spotlight: Prairie Trout Lily, The Naturalist's Apprentice: The Anatomy of a Plant
Posters and teacher guides designed for use by Illinois teachers or parents. Correlated to Illinois Board of Education state standards. Poster is of fall color leaves and the names of each one. Poster is in Spanish.