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There is some room for improvement in a future edition. I would like to see more specific information on distribution and abundance, collecting techniques, and on distinguishing species of similar appearance. However, it is the best existing guide to the topic that I yet know of, and it has greatly expanded my knowledge and enjoyment of Northwest shells.
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It is very evident that Curtis approached this manual with the mindset of a teacher, deciding which skills the student needs to learn, and building the necessary knowledge incrementally so the student understands completely. I found that because Curtis assumes that the reader has no knowledge of such simple things as how a camp stove works, that I learned things that I never knew about my own campstove, that were not even covered in the manual.
Another thing that makes this book especially good for all levels of backpackers is Curtis' coverage of Leave No Trace techniques. Curtis does a very good job of explaining the LNT guidelines and giving practical examples and suggestions for making the minimum impact on the ecosystems while we are backpacking and camping. The manual offers some food for thought by pointing out how many backpackers do simple things that have very significant impact on plant and animal life (e.g. Going swimming in streams and ponds without first washing off toxic chemicals like insect repellant and sun screen).
I think this book would be especially useful for leaders who are looking for an organized way to teach backpacking skills to students.
I've seen many other similar books, and none provide the excellent level of detail that this book provides. I recommend it most highly.
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I think the maps are very good and the many colors used really help the maps.Kenn uses two colors for the each of the seasonal ranges. A darker color indicates the area where the species is common during that season, while a paler color indicates areas where the species while present is less common or rare.
The pictures for me at times can become a little crowded and some of the photos are a little pale, but most of them are much better than any other "photo guide". Some of my Photos and ink smeared in my book, so you may want to double check before purchasing your book. This field guide makes it very simple to look up a bird on the field. The Color Tabs are simple as well as the index in the back. I enjoyed the vocal I.D. for each bird but that is a very personal taste.
Each I.D. also adds a little something I miss in a lot of field guides, for example: "A hyperactive midget, common in winter in woods and thickets of south. Harder in summer, when often high in tall conifers. Flicks wings open and shut especially when excited." Golden-Crowned Kinglet
In closing I must say this is one of the easier field guide to birds to use and is a warm welcome to the birding community.
Martin Phillips
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I loved the book, and recommend it highly -- it really focuses on the valuable resources we have but often don't appreciate.