This raven at Grand Canyon NP has no fear of humans and even accepts handouts from them. Not deterred by the rain, he waits patiently for the tourists to pull up, snap a photo and possibly throw him a morsel or two.
This specimen is not alone in adapting to hitting up humans for food. I watched several species of birds up at Reflection Lakes near Mt. Rainier doing the same thing right next to the parking areas.
There is an issue with Uploading Photos (attachjments). I am not sure what the problem is, and I am looking into it. You can still try to Create your Threads and Upload your Photos, but it is hanging up during the Upload.