I watched flocks of these birds on a small pond near the Priest Butte Lakes, in Seton County, Mont. They flew to the pond in a compact flock, scattered over the pond to feed, and evidently gathered insects from the surface of the water. When frightened by the approach of a marsh hawk the birds all rose, quickly formed the compact flock and flew away, returning later when the hawk had gone. _Voice._--The vocal performances of this little phalarope are not elaborate or striking. As it rises from the water it utters a plaintive and rather faint twittering note of one, two or three syllables, which has been variously noted as _tchip_, or _tchep_, or _pe-et_, or _pleep_, or _wit_, _wit_, or _quet_, _quet_. Charles W. Townsend (1920) says that it has a variety of notes. At times it twitters like a barn swallow, at times it emits a single harsh note like that of the eave swallow. Again a gentle _ee-ep_ is emitted, or a sharp _quip_. According to Witherby's Handbook (1920), "Gladstone describes alarm note as a hoarse _chiss-ick_, and Aplin speaks of a short _quit_, a rapid _ket-ket_, _ket-ket_. and _chirra-chirra-chirra_ at nesting places." _Field marks._--The northern is the smallest of the three phalaropes. It is the one most likely to be seen on inland ponds, except where the Wilson phalarope is common; but the latter is much larger and lighter colored, especially in fall and winter. The best field marks are small size, small head, slender neck and needlelike bill. The upper parts are blackish or dark gray (not pearly gray, as in the others) and in flight a white stripe shows conspicuously near the posterior border of the wing. _Fall._--Northern phalaropes are very abundant during August and September off the coasts of New England, but they seldom come near shore, except in severe storms. The main migration route is so far off shore, south of Cape Cod, that these birds are seldom seen in the Atlantic coast south of New England. There is a heavy fall migration throughout the interior, which begins quite early. We found them abundant on both migrations in Saskatchewan and Alberta. After I left, Dr. L. B. Bishop saw a flock of 100 at Many Island Lake, Alberta, on July 13, 1905, the beginning of the fall migration; they were still more abundant at Big Stick Lake, Saskatchewan, on the 19th; nearly all of the birds taken on these two dates were adult females; many males were probably still tending broods of young. A. G. Lawrence writes to me that these birds are fairly common transients in southern Manitoba, from August 15 to the end of September. H. L. Stoddard (1923) has published the following note: