Treat animals with kindness, and they will give kindness right back to you. That is something that although we have been told our whole lives, we didn't really understand until later on, until we became animal-obsessed and started petting everything in our path. This is true for dogs, foxes, cats… everything. Feed a stray cat some food, and you may end up adopting it. Help a cat momma out for a moment, and she may bring you her kitten. Give an aloof cat some love and space and respect, and before you know it, that cat will be sitting in your lap for the first time ever.
Kindness brings more kindness, and that is definitely true for crows too. Crows are smart animals. They remember. They care. They know who the good ones are, and if you are one of the good ones, like the woman in this thread is - if you show crows kindness by feeding them and befriending them, then maybe, just maybe, they will save your kitten one day.
source https://cheezburger.com/38905861/woman-has-been-feeding-the-local-crow-family-for-years-they-repay-her-kindness-by-saving-her-kitten