No tears in the raptor netting, no holes in or under the fence. They were about half-grown, I'd guess, and if a snake big enough to eat all 12 had gotten in there, he sure wouldn't have been able to get back out, after a meal like that.

I could probably accept "found a way out" if just a few were gone, even though they'd likely still have been nearby, but every single one of them?...when they had feed, water, and shelter, and were completely accepted by the older birds?