{"fact":"Although American crows often migrate alone, they were almost always observed foraging with other crows during their migratory stops, and sometimes with other species like ravens.","context":"…in all but one situation, they were in the company of other foraging crows. … On seven occasions, crows were observed foraging with common ravens at carcasses.","source":"Michael P. Ward; Arlo Raim, The fly-and-social foraging hypothesis for diurnal migration: why American crows migrate during the day, 10.1007/s00265-011-1151-0","index":122}