I have 3 red 9 week pullets running around. 2 of them are red sex links and one is a rhode island red. i used to be able to tell them apart but now they got a lot older when i was away on a trip for 2 weeks. and they also got very stressed and pulled a lot of feathers out... but due to zoning issues i need to downsize my flock and am trying to sell these 3 pullets. the problem is... i can't seem to figure out which is which.. can anyone tell me the main differences between these two breeds at around 9 weeks of age?