Yes...I know that larger birds don't always lay larger eggs. I have had some 6 lbs hens (not Legbars) that never laid over 65 gram egg (they went to the cull pen) while some of my 4-1/2 lbs white Leghorns have laid eggs over 70 gram eggs. The 6 lbs hens as a whole are capable of laying larger eggs even though individuals vary in egg size. I have seen some 6 lbs hens average eggs around 75 grams, but haven't seen any 4-1/2 lbs hens match that.Yet Mr. Michael Pease introduced white leghorn to the CCL blood line?.. larger birds may lay larger eggs, but not always, heck jumbo eggs comes from skiny leghorns, and I wish for you to point me where it says on any of the legbar history that is a Medium sized weight laying breed?
Have you ever got a 63 gram egg from a Bantam hen? Of course not...so the size of the hen DOES factor into how big an egg they can lay. The size of the hens is very important in ensuring that it meets its intended purpose of the breed which is why the weights are listed in the Standard of Perfect.
The fact is that the Legbar SOP has higher weight requirements that a Leghorn. The Legbar is NOT the only breed in the world that requires 6 lb hens. It is also NOT the only laying breed in the world that requires 6lbs hens. You can't meet the intended purpose of the Cream Legbar with a 4-1/2 lbs hen. If you could the Legbar standard would have been for a 4-1/2 lbs hens.
You don't need to dig through the publication and notebooks of guys that have been dead for 30+ years to determine what weight birds are "light weight" and what weight are "medium weight", etc. Just start a thread on the BYC with a question that is something along the lines of "How heavy are light weight large fowl laying hens, vs, medium weight large fowl laying hens and heavy weight large fowl laying hens?" The Leghorns will be the first bird that people list as a light weight laying breed and their SOPis for 4-1/2 lbs birds. Breeds like the Plymouth Rock and Orpington that have hens in the 8 lbs range will probably be listed as the heavy laying hens, and breeds with weights around 6 lbs will likely be listed for the medium weight laying breeds. The Cream Legbar is not a Light weight breed. The weight requirements push it in the medium weights. There is nothing wrong with not being a Leghorn. There are 200+ recognized breeds of Chickens to prove that. There is also nothing wrong with being a 6lb laying hens. That are plenty of breed to prove that too.
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