I have several Black Javas that I hatched from eggs received from Duane Urch (Urch/Turnland Poultry). The only one of the flock showing the recessive gene for yellow feet (bottoms) also has what looks like a deformed tail (feathers point down). Is this a genetic flaw or due to hatching problems? It was a difficult hatch and I had to break the rules and extract some of the chicks after they pipped or they would have died. I have since undated my equipment and knowledge, so I hope to never have to do that again (It is very nerve racking). However I would like to use this bird for breeding (proper foot color), but not if the tail problem is genetic.