I know it was cocci b/c we haven't seen any blood in her poop since the treatment. She's also putting on weight again after getting a bit thin for a BR. The final straw was that she was starting to act really listless, looked droopy, wasn't interacting with the others, and seemed very unhealthy.
Squatting is a sign of submission to dominant creatures. Some hens will squat for anything or anyone: children, dogs, owners, etc. We've got just 4 pullets. All except the banty cochin squat to both DBF and me. The cochin isn't laying yet.
The pullet in question stopped laying in mid-January after the 2 abnormal eggs, which I suspect were a result of poor nutrution due to her cocci problems. Now that she's over it, we're hoping to start getting eggs from her again soon. We're also glad that she's feeling better: brighter eyes, socially involved with the others, active and talkative again. Dumpling is back to her old self!