hi, I purchased some hereman ceusters three pair and my m8 also got some througk john wheatcroft lines and humber stood we both find that they at very slow at laying up to 5 weeks and still not all laid my other birds vanloons and coopers all went down in 10 days this happened last season with the original pair . I was woundering if any one else has had this problem with the breed looks like they will have to go as struggle to get ybs out of them thank you