Mature same as any other pigeon, parenting skills probably depends on the strain, usually fine though. Need to be careful with the diet mind, too much good grub and protein and the cocks will start driving again far too soon. Flown in pairs or three's, they're best described as hard to train but very easy to lose! That said, once you've seen a really good flight, when they climb into the pins in about 5 minutes and come screaming back down in about 5 seconds they make all other pigeons seem pretty dull.