We bought three beautiful white chickens yesterday at an animal swap and we were told they were "polish." I watched one lay a very small mint green egg this morning. It is the smallest chicken egg I have ever seen. It is smaller than my quail eggs. Is this normal or an accident? Also, can polish chickens lay small mint green eggs? I was thinking it was mixed with some other breed but are there chickens that lay that small of an egg? I will try to post a picture in the comments. Thank you!