_Nesting._--My personal experience with the nesting habits of the northern phalarope has been limited to what few nests we found in the Aleutian Islands in 1911. These birds were very scarce or entirely absent in the eastern half of the chain. We saw a few on Atka Island where several nests, with fresh eggs or incomplete sets, were found on June 18. On Kiska Island they were really abundant and we found them breeding about the small grassy ponds and wet meadows; fresh eggs were found on June 21. Their favorite resorts all through the western part of the chain were the wetter portions of the flat alluvial plains, near the mouths of the streams and about the marshy ponds. They were very tame everywhere and, about the ponds where they were breeding, they were very solicitous and noisy. Their simple nests were merely deep, little hollows, lined with a few bits of grass, in the little mounds or tussocks in the wet meadows around the borders of the ponds or near the small streams. F. S. Hersey collected several sets of eggs for me near St. Michael, Alaska, in 1914 and 1915; most of the nests were in rather wet situations on the tundra, in or near marshy places, rather poorly concealed and scantily lined with grasses; others were well hidden in the clumps of scanty grass, or deeply sunken into the tundra mosses and lined with bits of leaves or well lined with grasses. Other observers have described the nesting habits of this species substantially as indicated above, except that Henry H. Slater (1898), who has "encountered 45 nests with eggs in them in one day, and considerably more than a hundred altogether", describes the nest as "a deep comfortable cup, concealed in a tuft of grass, or under a trailing branch of some dwarf Arctic shrub."