Bonny, bon appetite http://www.shootinguk.co.uk/recipes/rook-pie-recipe-15406

Never eaten it myself but may try.

Book on Rook Rifles. 'The Classic British Rook & Rabbit Rifle' by Colin Greenwood.

Yes, sad that many were bored out to .410. I have one that was so bored out by Ebrall Bros. Nice little gun all the same. Lagopus.....