An Etymological Dictionary of the German Language/Krähe
Krähe, f., ‘crow,’ from the equiv. MidHG. krœ̂e (rare), f. (usually krâ and krâwe, f.), OHG. chrâia, chrâwa, and chrâ, f.; comp. Du. kraai, OSax. krâia, f., AS. crâwe, f., E. crow; a West Teut. word allied to krähen, which was orig. a str. vb. The Scand. term kráka, f., ‘crow,’ cannot be immediately connected with the cognates adduced; it is only very remotely allied.