Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to care for ducks in the winter time [title] Provide a big enough house for your ducks. [step] Ducks benefit from outdoor housing. In the winter especially, work on having a warm outdoor shelter for your ducks.

Ending1: Consider having ducks outside every weekday and several times a day throughout the winter. [substeps] You can keep the ducks in a coop or attic in colder weather, or you can place an indoor duck shelter in the backyard under the house if it has space. Ending2: [title] Use a moving medium to keep your ducks warm during winter. [step] A moving medium is either a wooden, brush, or a plastic structure with an open bottom. Ending3: Even if ducks are kept inside, you can provide an easy-access birdhouse at the back of your house. Opt for a 100 gallon (124 l) flat-bottomed duck housing for your ducks. Ending4: Your ducks will need a small wooden shed or shelter. Make sure the shelter you install is big enough for all your ducks to live comfortably.

Answer format: ending1/ending2/ending3/ending4