Photo of House finch by Albert Rhea.

Join us May 4 for a guided tour of Heron Haven, a spring-fed wetland and wildlife sanctuary. The sanctuary features one of the last oxbow wetlands of the Big Papillion Creek within Omaha’s city limits. Grab your binoculars and meet at the Heron Haven Nature Building, 11809 Old Maple Road, at 8 a.m. Keep your eyes peeled for Green Heron, Kingfishers and Great Blue Heron as we hike the Boardwalk and Upland trails. This field trip is free and open to the public. Please register at Audubon-Omaha.org, events calendar.

Join us Thursday, May 9, to see The Last Prairie, a documentary film exploring the Nebraska Sandhills, a vast wetland, fed by the Ogallala Aquifer, which bubbles up throughout grass-covered dunes. Its 20,000 square miles comprise the largest area of stabilized sand dunes in the Western Hemisphere and it has been recently described as the most intact temperate grassland on earth.

John O’Keefe, Ph.D., will join us to introduce the documentary he produced and directed. Dr. O’Keefe served more than 30 years on the faculty of Creighton University.

See you at DJ’s Dugout, 114th and Dodge. Social hour begins at 6 p.m., and the program starts at 7 p.m. Free and open to the public. Please register at Audubon-Omaha.org, events calendar.