Illinois Natural History Survey avian biologist Steve Bailey discusses Bald eagle populations in Illinois in the April 17, 2009 version of The News Sun. Bailey says that eagle populations have increased over the years, and now are inhabiting ranges that were likely historically inhabited. The bird is now spreading quickly throughout the Chicago area. The full text of the article, "So, exactly what DO you call a group of pelicans? Eagle populationsoaring in state," is available on NewsBank.