The Birds by Roger Tory Peterson & Days of History Book Lot

Two hardcover books. The first is "The Birds" by Roger Tory Peterson, part of the Life Young Readers Library and published by Time Inc. in 1970. It covers bird migration, anatomy, and bird "talk" with both color and black-and-white illustrations. The second is "Days of History: 200 Years Ago Revolutionary Era" by Jordan D. Fiore, published in 1974 by Historic Reproductions (first printing). This title offers a month-by-month account of the Revolutionary Era, featuring color plates and historical reproductions.  Both books appear to be in good structural condition. See photos for measurements, if taken.