I assume you can answer the question whether Charles and his sons kill animals for fun or for consumption.
The queen, when residing in Balmoral, used to get cut-up animal meat from the local butcher.
Any grouse that is killed on country estates is consumed. They don’t just leave edible food on the ground. Dogs are especially trained to retrieve the dead bird and not damage it.
During grouse season grouse will appear on menus all around.
The queen also used to shoot grouse and deer again also consumed.
But you are assuming Charles is still hunting so if you are making that statement you really should back it up with evidence.
So my answer is that the hunted birds are consumed.
Charles is significantly involved in animal welfare groups related to farming methods and is a huge campaigner for locally sourced sustainable produce rather than factory farmed produce that people buy in supermarkets.
I assume the fact that you are trying to differentiate between shooting birds for pleasure or for consumption that you do think there is a difference morally with regard to “killing” and maybe you therefore do eat and drink animal products?
They both involve killing and it can be argued that the purchase of chicken from a supermarket is a far bigger issue for animal welfare re factory farming than someone shooting a bird from a free flying sustainable source for food.