Beside this, what shot for crow hunting?
A modified or improved-cylinder choke, shotgun depending, is likely best for your plans. As shotgun loads go, No.6 shot, to even No. 7 1/2s or 8s are a good bet.
Additionally, why are you not supposed to eat a crow? Eating crow is a colloquial idiom, used in some English-speaking countries, that means humiliation by admitting having been proven wrong after taking a strong position. The crow is a carrion-eater that is presumably repulsive to eat in the same way that being proven wrong might be emotionally hard to swallow.
Similarly, you may ask, why is there a hunting season for crows?
If you're ready for your first hunt of the year, you don't have to wait for the various September opening days, because it's already crow season. It's due to federal migratory bird treaties that only allow a certain number of hunting days.
Is shooting a crow illegal?
All birds are protected except the following: Starlings, Crows, Pigeons, House (English) Sparrows, Magpies, Blackbirds, Common Grackles, Brown-headed Cowbirds, Ravens (hunted on private land by residents) and any other birds for which an open season has been declared by the regulations as indicated in the summary.