Birds just don't crash due to piloting error, they are built to do things aeronautically, that nothing that man builds, can do.
You've never seen a bird crash during a glassy water landing? It's not just people; birds do it, too.
Ever seen a bird hit a plate glass window? It happens every few days at our house, especially in the evening when the desert sun catches the large bedroom window panes. Most of the time, the birds pause, replan their flight, and depart again. Occasionally we host one for an overnight, and once in a blue moon the hapless busted-beak aviator flies west for the last time.
This spring I had several occasions to help three "student pilot" cactus wrens that weren't mastering solo flight just quite yet, during their initial launches from the nests in the acacia tree in front of our house. Two went on to be fully qualified aviators, while one, sadly, didn't make it. The wrens were able to launch, but with a very poor glide ratio that resembled a single down-line from the next to a forced landing, whereupon they would taxi for a considerable time in order to avert a cat incursion. It was during these taxi sessions that I was able to divert them to their original (or alternate, in one case) hangars for some additional instruction and a few more worms.