Alfred M. Bailey (1926), whose observations were made at Cape Prince of Wales, Alaska, says: Cutting down the opposite side of the ridge, I heard many calls which reminded me of home in the early spring, for the combined totals sounded like the singing of many little grass frogs in a meadow pond. It was the call, or rather the "spring song," of the Baird sandpiper. I soon flushed a little female, which fluttered away uttering cries of alarm. I concealed myself, and she soon returned, the male also hovering about, making his little froglike peep. At times he would rise high in the air, in the way so characteristic of male sandpipers, give forth his song, and sail down to perch. _Nesting._--MacFarlane's notes mention seven nests found in the vicinity of Franklin Bay, but very few data were given; "on June 24, 1864, a nest containing four eggs was found in the Barren Grounds, in a swampy tract between two small lakes, and was composed of a few decayed leaves placed in a small cavity or depression in the ground, shaded by a tuft of grass." John Murdoch (1885) says: The nest was always well hidden in the grass and never placed in marshy ground or on the bare black parts of tundra, and consists merely of a slight depression in the ground, thinly lined with dried grass. All the eggs we found were obtained from the last week in June to the first week of July, a trifle later than the other waders. The sitting female when disturbed exhibits the greatest solicitude, running about with drooping, outspread wings, and loud outcry, and uses every possible wile to attract the intruder from the eggs. The nest is so well concealed and forms so inconspicuous an object that the only practical way to secure the eggs is to withdraw to one side and allow the sitting bird to return, carefully marking where she alights. Having done this on one occasion and failing to find the eggs, after flushing the bird two or three times I discovered that I had walked on the eggs, though I had been looking for them most carefully. Mr. Brooks (1915) writes: Two nests were found, each containing four eggs and about one quarter incubated on June 12 and 14, 1914. Murdoch found them nesting rather later than other waders at Point Barrow, but my experience at Demarcation Point was quite the opposite, for here they were the first to breed. A female taken June 2, had a fully formed and colored egg about ready to lay. Both of the above nests were on dry, well-drained tundra near the bases of knolls. The nests were like the other sandpipers, and lined with dry willow leaves, but the cavities were less deep than those of the semipalmated sandpiper.