We have about 20. I occasionally let them out to fly around. They usually come back, but sometimes they're too stupid to figure out how to get back inside the aviary, so they roost on top. I use a net and capture these stragglers as soon as it turns dark. They usually don't venture too far. Yes, occasionally I lose one, perhaps to a hawk or something, but they breed like rats (sometimes it seems that way, anyway). I certainly wouldn't let them out if I only had two.

From egg to chick takes about 14 days, I think. The chicks grow quickly, and in about 3 more weeks, the chick is almost as large as the mother, and can fly.

I feed them 'dove mix', which contains milo (sorghum grain), wheat, millet, and small sunflower seeds (in the shell). Our aviary also has chickens and ducks, so our doves occasionally also get chicken scratch (cracked corn, wheat, milo) and lay mash/crumbles/pellets.

I don't know of any web sites to look them up.

I do know that they can become naturalized in some locations. Apparently, somewhere in Los Angeles, there is a wild flock.