Animator here.
The style is a trademark of the studio, Ardman. If you're going to watch something from them, more than likely it will be stop motion in their trademark art style.
I'm not sure what you out looking for in terms of chickens looking like chickens, but some common unappealing traits I know people take issue with are wing fingers and teeth in beaks.
In general, chickens are not the most popular subject of animation although I do have a pipedream for an adaptation of little women, but they're just chickens.