The female was on one nest and the male on the other. The former left the nest when I was some distance away and flying directly toward me alighted within a few feet. While I was at the nest she walked hurriedly about close by constantly uttering a plaintive _weet-weet-weet_ always repeated three times. Occasionally she would take a short flight about me and utter a note very similar to the rattling call of the pectoral sandpiper. The male when disturbed acted quite differently. He sat closer and on leaving the nest showed the greatest concern, dragging a "broken" wing in the most distressing manner. In neither case was the mate about as frequently occurs with the semipalmated sandpiper. Mr. Dixon (1917) says: At Griffin Point, less than 50 miles to the eastward of Demarcation Point, the first set of eggs (fresh) was taken on June 24. The last set was found July 11, with the four eggs nearly ready to hatch. Murdoch speaks of the nests being well concealed and always hidden in the grass. In those nests which we found, no attempt had been made at such concealment, as they were placed absolutely in the open, with nothing to cover or conceal the eggs at all, and the nests so shallow that the tops of the eggs were almost or quite level with the surrounding grass. Far from being conspicuously exposed thereby, however, the eggs were shielded from discovery in the most effective manner possible, for in color and markings they blended so perfectly with the brown tundra that a person could easily look directly at them from a distance of 6 feet and still not be able to see them. This method of nesting seems to be the most effective way of escaping one great danger at least, namely, the notice of the countless jaegers, both parasitic and pomarine. These robbers subsist almost entirely during the breeding period on the young and eggs of other birds, and cruise continually back and forth over the sandpipers' nesting ground, looking for the least telltale feather, bit of wind-blown down, or other object which might afford a clue to the whereabouts of a nest. Herbert W. Brandt found only one nest of the Baird sandpiper near Hooper Bay, Alaska, which he tells me-- Was on a dry mossy ridge amid the dunes and was partially concealed by the surrounding curly grass. It was flimsily constructed of grass stems and filled with a scant handful of small leaves of the dwarf birch and blueberry, together with a few adjacent reindeer-moss stems. The measurements of this nest were: Inside diameter 2-1/2 inches, and depth perhaps 2 inches.