If you are looking consider Hoovers Hatchery. I have ordered over 600 birds from them in the last couple years and have really liked them. Like what was mentioned by 'what did I do' they seem to have larger/stronger hearts and I see very few flips. But then again the same birds are available from other hatcheries to. It all depends on what line of grandparent stock to hatcheries bought their parent stock out of.