Just a further comment on Ven. Appicchato's post:
What the Buddha Said About Eating Meat
However there are some meats which are specifically prohibited for monks to eat: human meat, for obvious reasons; meat from elephants and horses as these were then considered royal animals; dog meat - as this was considered by ordinary people to be disgusting; and meat from snakes, lions, tigers, panthers, bears and hyenas - because one who had just eaten the flesh of such dangerous jungle animals was thought to give forth such a smell as to draw forth revenge from the same species!
Towards the end of the Buddha's life, his cousin Devadatta attempted to usurp the leadership of the Order of monks. In order to win support from other monks, Devadatta tried to be more strict than the Buddha and show Him up as indulgent. Devadatta proposed to the Buddha that all the monks should henceforth be vegetarians. The Buddha refused and repeated once again the regulation that he had established years before, that monks and nuns may eat fish or meat as long as it is not from an animal whose meat is specifically forbidden, and as long as they had no reason to believe that the animal was slaughtered specifically for them.
The Vinaya, then, is quite clear on this matter. Monks and nuns may eat meat. Even the Buddha ate meat. Unfortunately, meat eating is often seen by westerners as an indulgence on the part of the monks. Nothing could be further from the truth - I was a strict vegetarian for three years before I became a monk. In my first years as a monk in North-East Thailand, when I bravely faced many a meal of sticky rice and boiled frog (the whole body bones and all), or rubbery snails, red-ant curry or fried grasshoppers - I would have given ANYTHING to be a vegetarian again! On my first Christmas in N.E. Thailand an American came to visit the monastery a week or so before the 25th. It seemed too good to be true, he had a turkey farm and yes, he quickly understood how we lived and promised us a turkey for Christmas. He said that he would choose a nice fat one especially for us... and my heart sank. We cannot accept meat knowing it was killed especially for monks. We refused his offer. So I had to settle for part of the villager's meal - frogs again.Monks may not exercise choice when it comes to food and that is much harder than being a vegetarian
. Nonetheless, we may encourage vegetarianism and if our lay supporters brought only vegetarian food and no meat, well... monks may not complain either!
May you take the hint and be kind to animals.
 Book of the Discipline, Vol. 4, p. 324
 ibid, p. 325
Ajahn Brahmavamso - http://www.urbandharma.org/udharma3/meat.html