(5) Perisoreus canadensis 1889. Maine. Lake Umbagog, I have never seen these Jays cross the Lake as the Blue Jays are continually doing, nor indeed have I ever observed them take a continual flight of more than two or three hundred yards. Their wings seem to be used more as parachutes than as means of propulsion, for they rarely flap them except when rising from the ground into a tree. Their ordinary method of moving through the woods is by sailing from one tree to the next, alighting low down, hopping or flitting from branch to branch until they get to a sufficient height to make another scaling flight. Nevertheless, they move with such rapidity that it is difficult to overtake them without running, for they rarely remain more than a few seconds in one tree before starting for the next. There is something peculiar about the appearance of the bird when thus sailing, something which I have never been quite able to analyze. Perhaps it is merely the shape of the wings, which are very broad, and appear to be strongly concave with the tips bent sharply upward. The bird at first sight, while thus scaling is apt to be taken for a hawk, but its motion is much slower. On the ground it moves by short hops, so elastic that one might imagine it to be jumping on a rubber surface. It has a variety of notes, most of them shrill and penetrating, the commonest loud, hawk-like whistle, very like that of the Red Shouldered Hawk, but clearly not, as in the case of one of the Blue Jays calls, an imitation of it. Another common cry is a succession of short, rather mellow whistles, eight or ten in number all given in the same key. frequently utters a loud "Cla, cka, cla, cla, cla, cla, cla," not unlike the cry of the Sparrow Hawk. It also scolds very much like a Baltimore Oriole. Twice I heard one scream so nearly like a Blue Jay that I should probably have been deceived had not the bird been very near and in full sight of me. In addition to these notes, it also has a low, tender, cooing noise which I have never heard except when two birds are near together, evidently talking to one another. The captives above-mentioned on being taken to Cambridge and put out of doors for several days in a large cage became considerably shyer than they were when first captured. In fact, at the day of writing, November 9th., they would no longer take food from 24