We often have ravens and crows in the neighborhood.Crows and Ravens Angry Bird’s Feathers Ruffled Last night we saw another lone raven in our back yard last night, preening on a post for about five minutes. It eventually flew away. Three minutes later we saw it come screaming back across the yard, mobbed by four crows. The crows were so close and so mad, that as the raven crossed our yard, it did a full barrel-roll, trying to fend them off.