How do you ensure conservation of a species that spends less than half of its life on protected breeding areas? The first step is to learn where they go. That is not so easy when working with an organism like the golden-cheeked warbler, a Neotropical migrant that weighs one-third of an ounce (a little less than 10 g). Recently, biologists attached tiny light-level recorders to golden-cheeked warblers from five protected breeding populations in Texas to discover the wintering grounds and migratory pathways of this endangered species. Dr. Jim Mueller, I&M Zone Biologist, and Scott Rowin, Balcones Canyonlands National Wildlife Refuge Biologist, are collaborating with biologists from Fort Hood (John Macey [project leader] and Nathan Grigsby), Camp Bullis (Shannon Carrasco), Texas A&M University (Dr. Ashley Long), and Tarleton State University (Dr. Roger Wittie). More information about the project is highlighted in the feature at Backpacks for Birds.