| Birds | Peep sandpipers in flight Calidris pusilla, C. minutilla, and C. fuscicollis    Copyright David Seibel, 2009 (#1114) | Send Comment Camera: Canon EOS 1D Mark II N Exposure: 1/1250 sec, f/8.0, ISO 400 Lens: Canon 300mm f/2.8L IS + 2x II TC Date: May 18, 2009 Location: KCPL Prairie Wetland, Gardner, Kansas, USA Description: This mixed flock of Semipalmated, Least, and White-rumped sandpipers was very skittish, feeding feverishly but taking flight at the slightest provocation as the southerly winds and approaching dusk seemed to urge them northward. These and other small, similar species of Calidris are often collectively called "peeps."