Lewis O. Shelley has sent me some full notes on the migration of hairy woodpeckers, as he has observed it near East Westmoreland, N. H., from which I quote as follows: “For four years I have watched, in the autumn months, passing hairies that go through, some dropping down into the valley to feed as they go along, but others passing over the valley from hill to hill (2 miles) without stopping. In passing through, they traverse in general the same route each year. They come from an eastern and continue on in a western direction at an oblique angle to the Connecticut River, which they must cross in the vicinity of Brattleboro, Vt. “These migrants usually appear here late in August or early in September and continue to arrive at irregular intervals until late in October. It is common for one, or two, rarely more, to pass together; but such occurrences have happened, as on October 24, 1934, when, beginning soon after noon and lasting until four o’clock, the birds continued to pass through. At least 12 were seen as I walked up a roadway parallel to their course; and other moving birds were heard. It was also noticed that they kept spaced 40 to 50 yards apart, keeping abreast of one another, traversing in a leisurely manner; and as they approached a rock maple woods, the tendency was to close in like passing through the neck of a bottle and, once through the woods, again to spread out. Their progress was rather fast; and they fed little, if at all. They often called, as though to locate each other, since they were keeping about 40 yards apart, as was easily noted when they crossed pasture and mowing land. “I followed and watched in particular a male that continued keeping along ahead of me. He repeatedly crossed the road in a zigzag manner. Climbing to the top of a fence post or stump, he made lengthy observations, probably noting the progress of the other birds, and often answered their ringing calls. He, as well as the others, gave the appearance of a stranger in a new environment, truly a migrant. I noted how low the birds were passing, quite frequently flying not over 2 feet from the ground over open spaces, where long, bounding flights were made.” L. McI. Terrill told Mr. Forbush (1927) that the few local breeding birds disappear from the vicinity of Montreal early in autumn, and others, in a very noticeable wave, appear toward the end of October or early in November.