i'm considering adding ducks to the homestead....I hear great things about Mascovies ......I'm wondering tho about how they'd do in winter in eastern maine (without a heater)? i've been told they'd help with the slug & mosquito problem, like the small creek we have, get along with chickens & goats etc, and obviously there's the egg &meat option. i was also told they might try to stay outside and sleep on the water or nest in trees?what if i couldn't get one inside during the winter- would it be too cold for it? would they eat my garden too? I know the chickens ate quite a bit... would there be a better breed?thanks.