OK. Went and shot some birds in the Tucson area. Loaded up with the 400mm f2.8 IS+ 1.4X + an extension tube to allow close focus. All of these are hand-held with available light only. Ran into a few little hummers and one (a female Ana's I believe) that would almost pose. She allowed to get a few using the 85mm + extension tubes for extreme close up work. Didn't know which ones to post so I picked these 5.