Originally Posted by Tejano
This is one of the best bird resources. It supports what others have posted. Click on the Black Vulture lnk to see it's range map. https://www.allaboutbirds.org/guide/Turkey_Vulture/overview

That explains it. On the Ca coast they were there year round but only part time in AZ. Thanks!

I am continually astounded at how quickly people make up their minds on little evidence or none at all.
Jack O'Connor