vorwerks are a dual-purpose chicken suitable for both meat and egg production. standard size males weigh 2.5–3.2 kilos (5.5–7.5 pounds), and females weigh 2–2.5 kilos (4.5–5.5 pounds). however it is very important to note that the european bantam standards are different from the us standards, which is understandable as they were produced using different breeds. in particular bantam males in the us are 765 grams (27 ounces), and females in the us are 650 grams (23 ounces) but in europe the breed is heavier at 910 grams for males and 680 grams for females. if you are showing in europe it is well worth seeking out that standard rather than go by the us version. large vorwerk hens are good layers of cream-colored eggs, and will produce approximately 170 in a year. bantams are also dual-purpose, but (like all bantams) lay smaller eggs and fewer of them.