The Blue-winged Teal is the most common nesting duck at Quivira NWR.
Birds of Quivira – Blue-winged Teal
"What a thousand acres of Silphiums looked like when they tickled the bellies of the buffalo is a question never again to be answered, and perhaps not even asked." -Aldo Leopold
A Thousand Acres of Silphiums 
Lovely shots!