I was driving in to Arowhon last week and ran into Dan Strickland (a naturalist who has spent the better part of his life in Algonquin Park) in his car, with a ladder on top. He was visiting grey jay nests, in order to band the babies and take blood samples. What was so remarkable, he told me, was that by the time he left the nest, the wound from the needle was already beginning to close. In front of his eyes, he could see the wound healing. Wow!
As we were leaving, I noticed that Dan had turned off the engine of his car in order to talk to me. I had left my engine idling and was very embarrassed.