Corvus americanus. Lake Umbagog, Maine. Crow Roost. 1896. I took my supper in a little cove nearly opposite the Aug.14. Lakeside landing. Soon after reaching this spot I heard and saw Crows flying from tree to tree just inside the edge of the woods but I did not suspect that there were more than three or four of them until suddenly with a deafening clamor upwards of a hundred rose and circled over me. After berating me for a while they realighted and became quiet again but a little later they all rose together and crossed the Lake to the opposite (southern) shore nor did they return that night. Evidently I had blundered on their roost and excited their apprehensions to such a degree as to cause them to abandon it, at least temporarily.