at the end of old bird season i look at how birds have raced .if birds have raced badly . 1st i look at myself for feeding management ect.then i look at how bird was bred .i also look at how bird raced as yb.if i don,t find good enough reson i then get rid of that bird or birds. taking note of how it was bred.i don,t find very many as when the 1st race starts i don,t let them miss any club races after it.that finds most of them out.if i did not have the space and thought the yb,s was good then it would be offered to other fanciers that have had a bad season with losses .i also bred latebreds in case i need them if i don,t i always know someone or hear of someone that has had a bad season.