I have a couple roo's who are aprox 13.5 wks....one is crowing-another that Im still trying to determine m/f is making a crazy croaking noise. (pretty sure its a roo-thick legs, tall but no long tail feathers like the others and personality is like the hens. None of the 4 suspected roos even have bumps for spurs yet. Is this normal? When do the spurs start developing?