i flew my birds natural and i was asked by a member if i could kill birds i said yes thinking 1 or2 so i went down then he told me it was the lot he had about 6 or 7 yb 12 to 16 days old to young to leave nest could not kill them so i got the lot up the road and split them between my yb about the same size 3 of them went in to a nest box on the floor so now the cock and hen had 5 to feed cock went to open next again week and won club so NATURAL IS THE WAY TO GO but thats just me