Birding is a term that implies taking bird watching to the next level, somewhere between ornithology and birdwatching. People who describe themselves as birders tend to pursue their hobby with more vigor and determination than people who describe themselves as birdwatchers. Birders travel farther in pursuit of species count, and tend to purchase high end birding equipment such as spotting scopes and telephoto camera lens.
Wikipedia’s page on birding says “At the most basic level the distinction is one of dedication or intensity. Self-described ‘birders’ are more focused on finding and studying birds than on general observation…and many birders travel widely in pursuit of their hobby.”
People interested in birding in Peru should check out this web site, Perú, a True Paradise of Birds.
Bill Grimes, President of Dawn on the Amazon Tours and Cruises
Dawn on the Amazon birdwatching posts: Bird Watching, Bird Watching Iquitos Peru, The Advantages of Bird Watching with Dawn on the Amazon.