Thanks to everyone for your help with my previous breed question. I'm currently working on a FAQ to answer questions about urban food-producing animals (chickens, ducks, and dwarf goats) and I have just a few more duck questions: - How many eggs does the average duck lay per week? (I know that for chickens, you can get on average between 4-5/week per bird.) - Chickens will generally stay put behind a 4 foot fence. What about ducks? Do you have to clip your wings if you want to keep them from flying away? - What kind of shelter do ducks need at night? - Do ducks have to have access to water for playing (like a kiddie swimming pool), or are they ok without it? - How long do backyard ducks live, on average? - About how long are ducks productive? Thank you for your time and assistance -- it is very much appreciated!