I'm not exactly a dove or a vegan myself, but I've checked into the laws with regard to "Crimes against Animals" in Wisconsin, where a lot of people are bickering about feeding mice to owls. Forget ethics--it's ILLEGAL:
951.01 Definitions. In this chapter:
(1) “Animal” includes every living:
(a) Warm−blooded creature, except a human being;
(b) Reptile; or
THIS INCLUDES MICE.
951.08 Instigating fights between animals. (1) No person may intentionally instigate, promote, aid or abet as a principal, agent or employee, or participate in the earnings from, or intentionally maintain or allow any place to be used for a cockfight, dog fight, bullfight or other fight between the same or different kinds of animals or between an animal and a person.
AHEM--instigating a fight between an owl and a mouse meets the criteria here.
Section 951.15 Abandoning animals. No person may abandon any animal.
AHEM--by definition mice are animals.
It's not like I don't have blood on my talons, and I enjoy getting an easy meal as much as the next guy. But gimme a break. You humans write the laws, so follow them already.