Rhode Island Reds are one of the most popular chicken breeds in the world. Developed in America, they lay a large amount of rich medium brown eggs per year. They are often used to create sex-linked chickens where the roosters are different colors from the hens for easy sorting when they are chicks.ne of the more unusual types of chicken breeds is the Polish. These birds are light in body and are seen frequently in poultry shows. Their most unusual feature is the pom-pom like crest of feathers on their heads.