{"product_id":"born-to-sing-charles-hartshorne-1973","title":"Born to Sing: An Interpretation and World Survey of Bird Song","description":"\u003cp\u003ePhilosopher Charles Hartshorne's study of bird song surveys singing across thousands of songbird species and analyzes about 200 species with highly developed songs. He proposes that birds sing partly for enjoyment and compares singers on six factors: tonal purity, loudness, organization, complexity, continuity and imitativeness. Illustrated; 304 pages.\u003c\/p\u003e","brand":"Charles Hartshorne","offers":[{"title":"Default Title","offer_id":45279107776762,"sku":"U5\/12\/10162026","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/3387\/5450\/files\/IMG_7652.jpg?v=1709494476","url":"https:\/\/flippedpages.com\/products\/born-to-sing-charles-hartshorne-1973","provider":"Flipped Pages","version":"1.0","type":"link"}