jackdawEnglishOxford New American Dictionaryjackdaw /ˈjakˌdô, ˈdʒækˌdɔ / ▸ noun a small gray-headed crow that typically nests in tall buildings and chimneys, noted for its inquisitiveness. Genus Corvus, family Corvidae: two species, in particular the Eurasian C. monedula.