Guys,
Again, thanks for comments. Making me laugh already, and certainly feel welcome. You folks are champs.
Pat B/jeffp51 - yes emus are from Oz - mega chickens. But they're not super common and I think they like their sinew. Roos on the other hand are everywhere and slaughtered for BBQ flesh, so I guess you could source their sinew pretty easily if you wanted. At this point, I wouldn't even really know what to do with it, so I'll park that until I've banged out a few more bows.
Hawkdancer / osage outlaw / Rakau / airkah - Thanks for the encouragement. I've taken some pics of 'bow' #1. She's a total dog. Heaps of fleas too. I'm waiting until my humility gene is firing on all cylinders before posting some pics. I was nearly then, until I stumbled upon the "Best Self Bow of 2018" post. Totally blew my mind, but inspired me even more.
Ozi