White-rumped sandpipers have been reported in the British Isles fourteen or fifteen times and a specimen was taken in Franz Josef Land on June 28 (year unknown, but prior to 1898). _Egg dates._--Arctic Canada: 14 records, June 15 to July 24; 7 records, June 30 to July 12. Alaska: 2 records, June 25. PISOBIA BAIRDI (Coues) BAIRD SANDPIPER HABITS _Spring._--This sandpiper belongs to that class of birds which Abel Chapman (1924) so aptly terms "globe spanners," for on its migrations its traverses the whole length of both American continents twice a year. From its wintering grounds in Patagonia it must start north even earlier than the preceding species or else it must travel faster. Dr. Alexander Wetmore (1926) observed it migrating past Buenos Aires on March 5 in company with white-rumped sandpipers, and it has been known to reach Texas early in March. From there its course seems to be northward between the Mississippi River and the Rocky Mountains. A.G. Lawrence tells me that it passes through Manitoba between April 28 and May 29; and J.A. Munro gives me, as his spring dates for southern British Columbia, April 30 to May 10. Prof. William Rowan (Mss.) calls it extremely abundant in Alberta about the middle of May and usually gone by the 24th. It is very rare east of the Mississippi in the spring. E.A. Preble (1908) saw large flocks foraging on floating ice at Lake Athabaska on May 25. Dr. Joseph Grinnell (1900) records it at the Kowak River, Alaska, on May 20. Joseph Dixon (1917) says: On May 31, 1914, at Griffin Point, Arctic Alaska, the first pair of Baird sandpipers for the season were noted feeding along the rim of a frozen tundra pond. The weather had turned bitterly cold during the previous night, and as a result the newly formed ice on the ponds was thick enough to support a man. Strictly speaking, there was no night at this date, for the two months of continuous daylight had already begun; so in a short time the sandpipers were bustling about picking up the mosquito and other pupae which were being washed out by a newly-born stream that gurgled under the snow and ice on its way down to the frozen lagoon. _Courtship._--Two somewhat different accounts of the courtship of this species have been published. W. Sprague Brooks (1915), who found this bird breeding at Demarcation Point, Alaska, writes: Only once did I note any courtship activity. On this occasion (May 24), the male would fly a few feet above the female, while she rested on the ground, with quick erratic wing strokes suggesting a nighthawk. Frequently he would alight and raise the wings high over the back as a gull does before folding them. Then with the forearms perpendicular, the primaries would be slowly raised and lowered like a pump handle, generally lowered to right angles with the forearms, sometimes lower. Not a sound was uttered.