Historically, pigeons were actually a common food source. People built dovecotes link and some didn't even endeavor to feed the birds on their own. They simply built a nesting site for the birds, let them flock, lay eggs, forage for their own food, and then they'd regularly collect the eggs and occasionally a bird for easy protein.
I eat meat. I feel better when I eat meat. Mostly chicken, but if somebody wants to buy me a nice steak, I will happily eat it. That happens a couple of times a year. I eat eggs and yogurt and chicken and fish, mostly. I watched a documentary last night that pointed out that humans have been carnivorous since there were humans, and we are constructed to eat meat, having one stomach. We're not constructed like cows, with more than one stomach, to handle eating plants and nothing else. This makes sense to me. I think the problem is not so much with eating meat as it is with factory farming.
i butchered a chicken once - well i had help and guidance from someone with practice, but it was an interesting experience... i sort of think every meet eater should do that at least once.
as for ethics: i don't agree with the notion that we are above the natural cycle of life, or that aspiring to be so is necessarily positive, nor do i agree with the notion that animals are lesser beings whose experience is somehow objectively less valuable than our own - value has to be answered in the context of "valued by whom", and the answer is simple: humans are more valuable to human society as animated beings playing in the grand experiment of trying different ways to live life, while most animals are more valuable to human society as slaves or carcasses, and i see myself as part of human society.
a more interesting question is the future:
as the world's economy flattens, population continues to rise & urbanize, i can see a case for price of meat will increase dramatically. in turn more and more development funds might be be injected into synthetic and artificially grown meat - for awhile being a cheaper but lesser quality alternative (and quite possibly demanding a few FDA loopholes) until it reaches a certain threshold of competitive quality - and quite possibly having pushed food engineering to not only recreate the textures & flavors of meat but diversify them - potentially bringing a sellout reaction - a point where the price of "organic meat" might drop so low that farms will be slaughtering them faster then reproduction rates.
while this is happening, raising your kids on a mostly-vegetable diet isn't a bad idea.
...I watched a documentary last night that pointed out that humans have been carnivorous since there were humans, and we are constructed to eat meat, having one stomach. We're not constructed like cows, with more than one stomach, to handle eating plants and nothing else.