Joe, You will surely want to hear from others with more experience about this, but I'll add in my two cents. I've found that for the more difficult species- sparrows, shorebirds, etc., the best books are those that are specific to that 'family' of birds. They give you plenty of information regarding identification, probably more than you'll ever need in a lot of cases. One drawback is that they're usually too heavy to be field guides. They're more like reference books. Still, if you can remember the field marks you saw, you can check them out when you get home. Or, you can leave the books in the car. Studying them beforehand helps me too. I don't know if there is a single field guide that could serve as a satisfactory supplement to the NGeo Guide. Below are some of the books I've used and/or seen others use and/or have had recommended to me. I'm sure everyone has their favorites and will be glad to plug them for you. _Photographic Guide to Hawks of North America_ - Clark and Wheeler (great photos, if nothing else) _Peterson's Guide to Hawks_ - Clark and Wheeler _Hawks in Flight_ - Pete Dunne (good for hawks that look like tiny specks in the sky) _Peterson's guide to Warblers_ - Jon Dunn _Guide to Identification and Natural History of the Sparrows of the US and Canada_ - James Rising _Shorebirds_ - Hayman, Marchant, Prater _Gulls_ - Peter Grant The titles and spellings might not be exactly right, but they're pretty darn close. I'd like to know if anyone else has ID books they find especially helpful and informative. Andy Rabin Gaithersburg, MD andyrab@wam.umd.edu On Thu, 21 Jan 1999, Joseph j Halpin wrote: > I have the Naional Geographic Guide; what is a good book as a supplement > to this guide? I seem to have particular problems with sparrows, raptors > and gulls or maybe I should say any species where the differences are not > standout obvious. I like the Peterson's guides because they have the > pointers. Are there other guides which are particularily useful as > supplements to the NG? > > Thanks, > Joe Halpin > Silver Spring, MD > email: halpinj @juno.com > > ___________________________________________________________________ > You don't need to buy Internet access to use free Internet e-mail. > Get completely free e-mail from Juno at http://www.juno.com/getjuno.html > or call Juno at (800) 654-JUNO [654-5866] >