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The Second Nebraska Breeding Bird Atlas by Wayne J. Mollhoff. 2016. Bulletin of the University of Nebraska State Museum vol. 29. 320 pp., 1 color photograph and numerous color maps and tables. $30 (paperback). ISSN 0093-6812. About halfway across the 400-mile stretch running east to west across Nebraska is the traditional line of ornithological demarcation, the 100th meridian, dividing eastern and western species of North America. Additionally, there is another, somewhat oversimplified, division of the state caused by a twofold decline in annual rainfall from east to west that led to a transition from tall-grass prairies that formally dominated the eastern part of the state to mixed-grass and, finally, short-grass prairies that dominated the far west. Another gradient across the state is that of elevation, from less than 1,000 feet in the east, near the Missouri River, to more than 5,000 feet at the western borders with Colorado and Wyoming. Before settlement, trees were sparse and mostly confined to river bottoms, and Nebraska was a prairie, kept as such by fire, caused by lightning and sometimes deliberately by native Americans. Today, crop-based agricultural systems dominate the east while droughtburdened ranch lands and grasslands dominate most of the western part of Nebraska. As a lifelong easterner, my first western birding trip included a few days spent in the Sandhills region of western Nebraska, which, at 19,000 square miles, comprises one-quarter of the entire state. The birds, the history, and the land itself are so appealing that I have made several subsequent trips there, including twice during the conduct of the second Nebraska Breeding Bird Atlas (NBBA2), allowing my wife and me to contribute modestly to the project and to meet Wayne Mollhoff, the man mainly responsible for organizing and publishing the second atlas as well as its predecessor (NBBA1) that was conducted between 1984 and 1989 (Mollhoff 2001). An atlas project for Nebraska necessarily will be different from projects conducted in smaller, more densely populated states. Like NBBA1, NBBA2 was a survey of only 5% of potential 3 3 3 mile atlas blocks, which pales in comparison to some states where surveyors monitor 100% of atlas blocks. Additionally, NBBA2 surveys were conducted by a total of only 225 individuals—far fewer, for example, than the nearly 2,000 individuals who contributed to the second atlas in my own state of Pennsylvania (Wilson et al. 2012). The NBBA2 is organized and formatted in a manner similar to other atlases, beginning with several chapters

the condor

<i>The Second Nebraska Breeding Bird Atlas</i><b>The Second Nebraska Breeding Bird Atlas</b> by Wayne J. Mollhoff. 2016. Bulletin of the University of Nebraska State Museum vol. 29. 320 pp., 1 color photograph and numerous color maps and tables. $30 (paperback). ISSN 0093-6812.

The Second Nebraska Breeding Bird AtlasThe Second Nebraska Breeding Bird Atlas by Wayne J. Mollhoff. 2016. Bulletin of the University of Nebraska State Museum vol. 29. 320 pp., 1 color photograph and numerous color maps and tables. $30 (paperback). ISSN 0093-6812.