Congratulations on your curiosity--natures best tonic. I was introduced to birding by an old classmate who battled invasive cancer to the hilt for several years in the latest study programs. Quadruple chemo whould drag him to death's door, and a couple weeks later he was hauling me and my walker to four water sights in Orange County in one morning. Bruce went thru life on a pogo-stick. He was the field partner working the bushes and trails. I was the book ornithologist wanting to know the common and latin names and habits of both flora and fauna. Ain't nature wunnaful? Dive!!! Bill Zahn, Long Beach CA