How much do you sell your chicks for? Say its $25 and you expected another 100 chick sales from him. Thats $2500 lost income, so now the value of the dead bird? You paid X for him, it cost you Y to feed and house him for however long you have had him.
It won't work that way in court unfortunately.
You can get the cost of a replacement bird but not lost future chick money or the cost of you raising him.
Say your rooster was a show quality 2 year old rooster. That's what you will get whatever it would cost for another 2 year old show quality rooster. Shipping or travel expenses to get him to your door can be included.
You won't get lost future earnings from him because the replacement rooster will produce future chicks for you
You can't get lost earnings and a replacement that will give you what he would of. That would be asking them for the same thing doubled. Make sense?
You can't get what you spent raising him because the compensation will be for a bird that is already raised. You can't get what it cost to raise him unless the replacement bird is a chick that will need to be raised over.
Sorry for your loss.