Warblers
01/29/09 | 7m 59s | Rating: TV-G
The Cook Arboretum is the largest uninterrupted block of forestland in Rock County, 125 different bird species have been sighted here as it is a critical way station for migrating birds. Producer Jo Garrett traveled to Janesville with veteran birder Andy Paulios to find out why Cook Arboretum is so important for migratory birds.
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