Yeah, I saw what you mean about the primaries and secondaries after I read that, defiently no stripping on the secondaries close to the body. Thats a really good article you posted. Thanks for it, I'm going to save it
Cute tiel ! Just love it when they snuggle. Don't know about sexing tiels, only budgies so sorry about him . Where did you buy him ? I am so sorry for your little buddy . R.I.P Kou