Though most of the Yellowlegs that are migrating through my area of Colorado are Greater Yellowlegs, I did get this pic with both a Lesser and a Greater in the same frame that shows some of the differences in these similar species. The bill on the Lesser is much shorter relative to the size of it's head than the Greater. The bill on the Greater shows a slight upturn and though more distant in this pic, it is larger in size (tho a very difficult difference to judge in the field when Lessers not present).
Also liked this pic of the Lesser Yellowlegs I photographed as it foraged in the flooded agricultural fields that become like wet meadows when flood irrigated. Both pics can be best viewed for details by double-clicking to enlarge each one. SeEtta
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