To dream that you see a raven or crow indicates mischief and adversity. In love, it shows falsehood.

Misfortune and obstacles, enemies and thieves.

…great success; whereas to dream of vultures portends failure and illness.Magpies, whether single or in numbers; mean death — if in flight, the death of some acquaintance or relative; if motionless, the death of the dreamer.To dream of hawks signifies the making of an enemy; to dream of owls implies the breaking of a friendship, the breaking off of an engagement, serious illness, accident, or death.Parrots in dreams are significant of impending scandal and gossip; pigeons are significant of presents of all kinds.Ravens portend grave misfortunes, and not infrequently the near presence of some phantasm; sparrows signify petty losses and quarrels; swallows portend grief — grief at someone’s illness, misfortunes or death— but grief, invariably grief.Storks in dreams mean an approaching birth; wrens an approaching engagement or marriage.The following are a few of the many accounts of bird-dreams upon which I have based my assumptions: “A lady writing to me…