The eagles are back! Join the fun with City of Fort Collins Master Naturalists at Fossil Creek Reservoir this winter. Bald eagles from the north make Fort Collins their winter home. They spend nights in communal roosts in cottonwood trees near the reservoir. Eagle Watch programs include a short walk along a paved trail to a viewing pier, drop in any time. Master Naturalists will help visitors view eagles through spotting scopes and binoculars.