Prairie & Timbers Audubon Society conducts this guided bird walk thru the Heard Sanctuary. The walk, which lasts 1.5 hours, begins promptly. Free with regular admission: $11/adults, $8/children. Heard Museum 1 Nature Place McKinney, TX United States Event URL Event Tags Bird & Nature Walks Family Friendly Wildlife Date and Time Sat, 02/09/2013 - 14:00 - Sat, 02/09/2013 - 15:30