I found a few what looks like tiny maggots/worms in and around one of my hen's droppings this morning in the roost. Are these roundworms? I would imagine they would look different. I worm my chickens with Wazine every fall when they molt & slow their laying... and have never had an issue with worms/parasites before. However, after finding these things in the droppings this morning I immediately put some Wazine in the hens' waterer. The suspect hen is about 5yo and doesn't lay much anymore, I got a couple eggs in the early spring. She's also a very mellow hen, but has been a little more so lately since she's had a bout of sour crop a couple of weeks ago that I seemingly self-treated by vomiting her and giving her Nystatin so I've been keeping an eye on her. Her crop seems to be working fine and she's definitely improved since then, but not 100%. But I'm assuming her immune system has been down so she contracted some sort of parasite... Anywho, can someone help identify what these are and how to treat it?