I found this pair of Barrow's Goldeneyes on a small lake. I only saw them mate once and managed a few shots.
I would consider this to be low but not super low so I hope it is low enough to be in the theme.
This is a substantial crop and I wish I had the 600 out with me that day. Regular processing with Sat, contrast, shadows and highlights.
Shot handheld with Canon 1DX2 and Canon 400DOII + 2xTCIII. 800mm f/11 1/3200 ISO 1600