So, I have two grown pekin hens, Smokey and Ember, and two young blue Swedish ducks (not sure of the genders yet), Skippy and Jam. Of the two swedish ducks, one is younger and considerably smaller (Skippy). They were raised together until they were big enough to join the Pekins outside. When I introduced them all, the older of the swedish ducks, Jam, joined right up with the Pekins, leaving Skippy to fend for himself. Other than Skippy always being off on his own, I never really saw anything to be concerned about. After a week or so of them being together, I went in to feed them and instead of running, as they normally did, Skippy just stood next to the pool and looked like he was spacing out. I walked right over and picked him up. He didn't panic, he didn't flap around or make any noise. Concerned, I took him out of the pen and held him for a while. He proceeded to get more and more limp, and suddenly went into a seizure. Throughout the day he had several violent seizures. I thought he was going to die, so I brought him inside and made him a comfy place to lay in our spare room. I had my husband run to the feed store and pick up some tetracyclone as a last resort. We gave him the medicated water and his seizures stopped by 10 PM that evening. He regained his strength and after two weeks of living inside, I decided to put him back with the other ducks. The other ducks seem to gang up on him and they all will go out of their way to peck at him. If he goes near the water, they attack him. I let them run around together for a while, and I noticed Skippy acting weird. When he runs with the other ducks, he will suddenly stop and lay down. He makes it a few feet, then does it again. Then, he was acting like he was hurt and limping. I picked him up and separated him again, and he went back to acting just fine. Sorry, I know this is a long post. I wanted to post his whole history in hopes that somewhere in there someone can pick up where a mistake was made, or if there is something wrong with this duck. Is this a stress thing? Is he sick?