_Field marks._--Lewis’s woodpecker should be easily recognized. At a distance it appears likes a black bird, the back and the upper and lower surfaces of the wings being black, with no conspicuous white showing anywhere, and with a crowlike flight, broad wings and black tail. At short range, the greenish sheen of the back may glisten in the sunlight, and the silvery gray collar and pinkish underparts may be seen, as well as the gray upper breast and perhaps the red face. _Fall._--This woodpecker seems to be a highly migratory species. From the northern parts of its range it disappears almost entirely during winter; and throughout its entire range it is given to extensive wanderings, being very abundant in certain localities during fall and winter in certain seasons and at other seasons entirely absent. The species is highly gregarious in fall, wandering about in large flocks in search for suitable food supplies. Mr. Rathbun tells me that this woodpecker is found in Washington from April to about November and occasionally is seen in winter, and says: “In this part [western] of the State the fall migration of this bird seems to begin early in September. Once, very early in the month, on our arrival at a lake not far from Seattle, we noticed a large number of these woodpeckers in three or four deciduous trees along the shore. Occasionally, a few of the birds would make short flights after insects in the air, but by far the larger number were more or less inactive and appeared to be resting, as some remained motionless where perched. And when one did change its position, it did this in a listless manner. Our arrival at the lake was rather late in the afternoon, and from the actions of the birds as a whole we gained the impression that they must have made quite an extended flight that day on their movement southward. On several other occasions in September we have seen this woodpecker as it was migrating. In each case a good many were in company, though rather loosely associated. And once, moving in a southerly direction with them for a very brief time, were numbers of nighthawks, swallows, and Vaux’s swifts flying around for insects.” Mr. Neff (1928) writes: This species, more than all its kin, moves in flocks in autumn. After the nesting season it gathers into flocks of from 10 to 300 or more. In such numbers it drops down into the fruit districts of southern Oregon and of northern California, and disaster results. * * *