From the eBird site located at www.eBird.com, I've paraphrased their purpose below:
"eBird ia real-time, online checklist program launched in 2002 by the Cornell Lab of Ornithology and National Audubon Society. eBird provides rich data sources for basic information on bird abundance and distribution. eBird's goal is to maximize the utility and accessibility of the vast numbers of bird observations made each year by recreational and professional bird watchers."

Below you'll find links to annual bar-chart distribution graphs to some of the best birding sites in Arizona and California. There are also several checklist "gadgets" powered by BirdTrax which provide real-time eBird data on what's being seen at many of these birding locales. Click on the "Rarities" button to whittle down the sightings to just the unusual birds.

And keep in mind, we provide tours to all of these areas!