The Leighton ponds (Site #5, Northwest Loop) sites are a series of sinkholes and semi-flooded agricultural fields that are excellent for waders and shorebirds. Scan the muddier areas for resident Killdeer alongside migrants such as Semipalmated Plovers and Least Sandpipers. In larger sinkholes, search for Green Herons, American Coots, and perhaps a Common Gallinule. Each pond varies greatly in the amount of water it holds, so the types of microhabitats range from mudflats to deep water. Regular stops at this area are sure to turn up some real surprises.