Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Birding Across America

The past and present co-mingle as Scott Weidensaul more or less follows the tracks of Peterson and Fisher's 1950s bird species race across America. More or less is exactly what Weidensaul discovers in his comparative count of loss and gain in our modern natural soul. Wonderful details and, sometimes wacky, personal reactions from each of the three men enriched my armchair experience.