One spring we had a really long late cold spell with snow and ice staying, we live along a mountain river and Canadas fly over in the morning and late evening, One morning I look out the kitchen window and there on the hill behind my house we're 2 Canada's I think they were flying over and saw...
As long as your not penning it up what can you do? it's staying under it's on choice.Did you bring it there? if not how can you be in any trouble? But I'd call a rescue or rehabber before killing it. seems such a shame. wonder if a hunter shot off it's wing.
Try looking up Strombergs, they sell Canada's as for info most likely you could find out just about all you'd want by typing in How to care for Canada geese on line.