Tringa flavipes
tags: Lesser Yellowlegs, Tringa flavipes, Least Sandpiper, Calidris minutilla, birds, mystery bird, bird ID quiz
[Mystery birds] Lesser Yellowlegs, Tringa flavipes (L), and Least Sandpiper, Calidris minutilla (R), photographed at the Lake Thompson in Kingsbury County, South Dakota. [I will identify these birds for you in 48 hours]
Image: Terry Sohl, 2 September 2007 [larger view]. You are encouraged to purchase photographs from this photographer. I am happy to email his contact information to you.
Canon 20D, 400 5.6L.
Please name at least one field mark that supports your identification…