Ok so this is a slightly contiverisal topic. I will start by saying how can a parrot tell a gender of a person. If you can prove this with scientific evidence I will envy you because I have searched all over and have no answer. Secondly I don't believe that parrots can tell male from female I believe that they can pick certain attributes of a male or female that they like. Let's say a deeper voice or a less dominate personality. It is proven that parrots can view in an ultra violent spectrum called the 4th spectrum so they see your heat indexes. I believe this has a huge factor to do with parrot training. Before I work with a behavioral issue(I work in rescue and this happens daily). I calm myself losing all negative energy so technically my heat indexes look friendly and warming to an animal. Many times with a parrot that hates men i can still handle just fine. I test this statement every time i hear it. I personally hate the male female preference crap.So with that said what is your opinion on it and please back up your response of your idea