50 Tips from North America's Top Birders. It's Sheri Williamson who contributed the title chapter to this handy, surprisingly informative anthology, which also includes practical advice by such modern birding luminaries as David Sibley, Ken Kaufman, Victor Emanuel, Peter Alden and Scott Weidensaul. Original essays from the biggest names in birding dispense advice to birders of every level, on topics ranging from feeding birds and cleaning binoculars to pishing and pelagic birding. Whether satirizing bird snobs or relating the traditions and taboos of the birding culture, each essay is chock-full of helpful information and entertaining as well. Pete Dunne's lively foreword kicks off the collection of essays, which are organized by category. Half of the essays are illustrated with delightful black-and-white line drawings by artist Robert Braunfield.  (BRD56, $8.95)