One of my black east Indie ducklings, Jemma was acting fine as usual tonight. Then all of a sudden she let out a loud yelp like someone had stepped on her or something but the other ducklings were not near her. I turned around to see her neck in a strange position, almost like a spasm and she began to spin very quickly in circles. 8 or 9 times in a row. Then as quick as she started, it was over and she shook off and seemed ok again. It was very odd. This was clearly not a silly/playful thing. She seemed distressed about it. She is 11 days old.