Mike: there is a list of resources here
https://docs.google.com/document/d/1x7ss651xh8dytVXCWSrYsDnxq94KcddMxZ77pfUxXc0/preview

This is likely the best source for pattern identification, which was my original interest until things sorta got our of hand wink
https://docs.google.com/document/d/1tXvObBOfgGpOKTh_jkttPcH1lKd--bfHY_sIjmr8uy8/edit

BTW: I'm up in Phoenix and during the winter drive by Vail regularly on the way to chase birds around Sonoita and the Canelo Hills.