Origen

“ And as Celsus is desirous to show that the assemblies of the irrational animals are more sacred than ours, he ascribes the statement to that effect not to any ordinary individuals, but to persons of intelligence. Yet it is the virtuous alone who are truly wise, for no wicked man is so. ”

“ In order that we may believe, however, that certain individuals do learn from the indistinct sound of birds that they are about to take their departure, and do this thing or that, and announce these things beforehand, we would say that this information is imparted to men by demons by means of signs, with the view of having men deceived by demons, and having their understanding dragged down from God and heaven to earth, and to places lower still. ”