Hi, I’m new to ducks. Last week I rescued 2 abandoned ducks, and put them in with my chickens (separated at first). All was well until 2 days ago when one of the ducks started charging my chickens. I pinpointed it to one chicken in particular, so I took her out of mix for a day, and everyone settled back in. Now today that duck is charging a different chicken. So I separated the ducks again this morning, but the one gets agitated every time she/he sees those 2 chickens. Any ideas why it’s doing this? I have multiple food and water sources and plenty of space in the run. Included a pic, if anyone can identify the breed or sex. Thanks in advance!