We (farmers, fishermen, gamekeepers) consider the Canada goose a pest. Under General License Canada geese can be killed any time of year if they are destroying crops. It's spring and the vulnerable first shoots of maize and wheat crops are coming up. Later when barley and wheat are ready to harvest, 50 geese can eat up to an acre a day (so one on-line source says).
So why am I standing in my kitchen, typing this blog post, with a Canada goose gosling keeping warm in my armpit, in a makeshift baby sling?
Why am I caring for a bird that will grow up to become a "pest"?
Because babies are babies, I couldn't leave an orphan to die of cold and hunger, and because, well, just because. Everything, pest or not, deserves a chance to be, I guess.