With my glasses I watched a pair of little pink-necked sandpipers as they worked around the grass at the foot of the hill. The male would give up his searching among the dried grass stalks to demonstrate his love for his little partner, upon which she would take to wing and circle about. Finally she entered a little tussock of grass, standing on her "nose" fluttering her tail and wings. Soon the male pushed his way inside, too, and after a few more rustling about, they took to wing. I looked in the grass and found a little cavity which they were just lining with leaves. Upon examining their nesting clump, I found a small pit, exactly similar to the nest of the western sandpiper, in which they had deposited about 20 small willow leaves. I marked the spot carefully, but upon my return found the nest abandoned. W. Sprague Brooks (1915) found a few pairs breeding at the head of Providence Bay, northeastern Siberia; he writes: Two sets of fresh eggs, numbering three and four, respectively, were taken on June 11, 1913; the male incubating one and the female the other. Both birds when disturbed fluttered off the nest like other sandpipers. The nests were cavities on small mounds of tundra lined with dry willow leaves. _Eggs._--I have been unable to locate any eggs of the rufous-necked sandpiper and do not know what became of the two sets referred to above. Joseph Dixon (1918) implies that the eggs resemble those of the spoonbill sandpiper. _Plumages._--In the downy young the crown and upper parts are variegated with black, "tawny" and "warm buff"; the forehead, superciliary stripe and sides of the head and neck are "warm buff"; the under parts are white, washed on the breast with pale buff; a narrow median stripe on the forehead and a broader loral stripe are black. The specimen described above was taken at Cape Serdze, Siberia, on July 16, and shows the beginning of the juvenal plumage; the back and scapulars are well covered with young feathers and the wings are well started, though the bird is still very small and mostly downy. The feathers of the back and scapulars are black, broadly edged with "hazel," and the scapulars are tipped with white.