crows are intelligent birds and often misunderstood by people. https://www.livescience.com/52716-crows-ravens.html symbolism and good fortune are attached to these animals. https://dreamingandsleeping.com/crow-raven-spiritual-animal-symbolism-and-meaning/
The taconite miners in Eveleth, MN, proved that at least some crows - the ones hanging around the break shack at lunch time - can count to seven.