I always felt that when I started carrying my 5th edition of the Geographic Guide as my main field guide, that I had sort of graduated to the field guide of a serious birding hobbyist. I needed to know what else has been seen as I traveled around the nation, just in case, and with 967 species in the 5th edition, I felt like I was covered just in case. I loved the 5th field guide, though it had some issues with color that I am glad to see fixed in the 6th edition. The 6th edition now covers 990 species seen or expected in the United States, keeping up with the new additions to the ABA lists.
Never before have I pre-ordered a book of any kind, but when I learned that the 6th edition was coming out, I just had to see how "America's #1 Bird Guide" was going to be made better. I did pre-order my copy from Amazon as soon as I was made aware of it's availability, I had it in my hands November 4th, 4 days after its November 1, 2011, publication date. Today I finished a page by page, bird by bird review of the new edition, and I do believe that the folks at National Geographic have made some nice improvements and kept their field guide the best that exists for North American birders.
I am thrilled with the new guide.
Specifically, the first thing one notices is the new maps. They are excellent, detailed and include much more information now with migration ranges noted (two excellent examples are Baird's Sandpiper and White-rumped Sandpiper), with migration routes shown separately for spring and fall. Along with those changes, they also included subspecies ranges for the species where that might be important to know. It is worth noting that for species that have complicated sub-species maps, there is a section in the back of the book with 41 detailed sub-species maps that are much appreciated.
Furthermore, there are many more range maps for birds that are not regular visitors to North America (Fea's and Bermuda Petrel come to mind), or have very small ranges (Island Scrub Jay for example). These maps show the Asian, Caribbean or Mexican typical ranges for the species in much more detail and indicate how the species might find it's way to the United States. It is a small detail that I really like. There was never a need to just show where the bird was seen in the US, and I am glad the folks creating this guide didn't stick strictly to US maps only this time around, the map flexibility has really allowed a wonderful addition of knowledge that these maps impart.
The next detail users of the 5th edition will notice that is different in the 6th edition is that every species entry is now broken into three distinct parts. They begin with species description, and then have clearly marked sections on VOICE and RANGE. It is the new and more comprehensive details in RANGE that are substantially improved in this edition. Clearly, they had listers in mid as they added the details they did about how often and when species are seen, or have been seen, that is just an excellent improvement, especially for the serious lister.
A third major change for this edition is the addition of field note details along with the bird images. They are insightful and great reminders for the accomplished birder, but wonderful instructional notes for the learning birder. I have always loved these notes in the Kaufmann guide, and the addition of these notes, in my mind does not detract from the wonderful images. I have always hoped that this feature would be added to this guide, and I never would have expected two other changes to make this anything other than my favorite update to the guide, but both the above outweigh this fantastic change to this guide.
A few small things I liked, images of the ducks flying are now WITH the species accounts. They still kept the duck, shorebird and raptor pages showing flying images of the birds for comparison to similar species, but for the ducks I always wanted the flying images with the species, and now that change has been made. The updates to Red-tailed Hawk are nice, not a comprehensive overview, of course, but more information that can be followed up on if one needs to know more. The new images of the sub-species are a nice basic update that was overdue. Finally, very minor, I loved the image of the Yellow Warbler feeding a just fledged Brown-headed Cowbird. How many times I have seen that in the field. Nice touch.
My suggestions for improvement? I have a few.
One, why doesn't any field guide show the ABA Species Code number? It would be easy to add and I would love to know what are code 2, 3, 4 and 5 species without having to add that information to the guide by hand.
Two, I must also admit at after Crossley's ID Guide, I like having the 4 letter codes with the species accounts. I would like to see those codes added to this guide too.
Three, I was disappointed to see Bachman's Warbler and Eskimo Curlew exiled to the Accidental & Extinct Species section (I love the section for accidentals, and found it surprisingly up to date). If this was my guide, I would keep the extinct North American species, Labrador Duck, Eskimo Curlew, Great Auk, Carolina Parakeet & Bachman's Warbler in their taxonomic places within the guide. It is a good way to place them inside the appropriate taxonomy, AND a great reminder of just how precious every species is, and how we need to protect the remaining species we have so we don't add to this list anytime soon.
Finally, of all the images, I thought the Winter Wren image to be terrible and off color. It was the only image I had a completely negative reaction too. The Winter Wrens we get in Chicago look NOTHING like that washed out light image that they have included for this species now that it has been split from Pacific Wren.
But none of these small suggestions should take anything away from how comprehensive and complete this guide is. The maps are worth the price of the book alone, the image accounts and much better with the RANGE notes, and the addition of field mark notes with the images has been done with respect and insight. This is a fantastic update, and every serious birder, or aspiring birder, needs this update for not just their library, BUT to have with them in the field.