This barn swallow sibling sat in the nest perched to fly on fly away day. He/it/she did not fly that day. All ready but no go. Timid? Who knows? I was shocked when we came in and found him on the concrete in front of the garage. For a moment I thought I’d struck it with my car. Nope. It was alive. It couldn’t stand. It didn’t fly. I picked him up and we quickly did an internet search. “Put him back in the nest.” we were instructed. Done! The other siblings flew away. Ok, that works. The next morning revealed our poor swallow on the concrete again. Pushed out of the nest? I saw one swallow briefly. But otherwise there was no indication of any family about. Calls to different agencies landed me with a call from a bird rescue group. I later hooked up with a local rep and we handed off the poor guy to his care. Our bird was still alive when we made the handoff. I hope he gets better and flies away.