I always crouch my expectations with wildlife rescue. In this case I didn't get close enough to really discern the full nature of the injury until I was bearhugging it, and at that point the mission was just to get it into that container and speed away. From 1.5m~ away the leg was really abnormal and seemed almost necrotic with no movement or weight-bearing whatsoever. The goose was exhausted and still actively bleeding pretty heavily. That kind of damage and function loss is probably survivable but I'd say it's 50/50 whether it's reintroduced or kept semi-wild in a sanctuary.

You can take them or you can leave them with a car battery. Both are fully legal.

It was very much a lesser of two weevils situation. We knew there was a significant risk of re-injuring it trying to capture it, but it was resting next to a big public event that would start in an hour. The risk of random schmucks doing that when my coworker studies wildlife biology and my background is in wildlife rehab was big enough to outweigh that. I ended up in the mud, covered in blood and shit, smiling while it bit me.