I'd assume that, these days, the greys are being killed as humanely as possible, and (even though I'm mostly vegan) I agree that they should go to the butchers, to be used in recipes, such as those given above - BUT we don't want greys culled in their native America!, where I enjoyed seeing them in New York, 1997, on my way home.
To IB - what bird was it?

Poem 206 of 230: MY DIET

Chasing breads, nuts, bananas,
    Red sauce, apples, sultanas,
Crackers, conserves, cucumbers,
    Pickles, porridge, pottages -

Lemon barley,
    Cocoa, coffee,
Or cups of tea.

From walkaboutsverse.741.com