I recently "rescued" a sea gull with a broken wing. I approached it while I was riding my bike on a very busy road filled with speeding wood-laden trucks and various other vehicles. The bird ran from me as well as it could, dragging its broken wing behind it; and as sea gulls are much more efficient at flying than walking, this was quite a feat. I managed to scare the creature off the road as well as I could, as I felt it was much safer in the fields beside the road, than on the road. Then I went home, feeling a little better with myself, as I believed I had helped the creature.
The next morning I was driving my Jeep to work along the same road, and lo and behold, there was the same (at least I think it was) gull wending its way along the road, a full 3/4 kms further along from where it was the night before. It had survived a full twelve hours on a very busy roadway. I was carrying a cat cage in the back of the vehicle, and I successfully captured the bird.
My philosophical quandary occurred shortly...