Habits. Pico des arcticus A female which I shot to-day was in company with two Picos villosa. All three were chasing one another among some fallen tree tops over the thorn of the lake. Oct. 22, '83. Saw several on this town Mudloway. Shortly after hearing one "drummed" for at least half an hour. The air was perfectly still and we could hear him long after we had passed the place. This "drum" was a triple roll. Wilton, Maine 1884 Oct. Upon telling Will Peaslee of the fact that there in autumn Woodpeckers congregate in large numbers in burned timber where the fire has been the preceding Spring he made the following explanation: When the fire runs through fir & spruce woods in June it kills the trees at just that stage when the "alba" (i.e. newly formed wood) is full of sap. This sap remains soft until winter. In early autumn the trees so killed are seen to be infest with multitudes of wood borers which Peaslee thinks feed on this sap. At