{"product_id":"2940013554986","title":"A Quantitative Study of the Nocturnal Migration of Birds [Illustrated]","description":"This edition features\u003cbr\u003e • illustrations\u003cbr\u003e • a linked Table of Contents\u003cbr\u003e\u003cbr\u003eCONTENTS\u003cbr\u003eIntroduction  \u003cbr\u003eAcknowledgments  \u003cbr\u003ePart I. Flight Densities and Their Determination  \u003cbr\u003e    Lunar Observations of Birds and the Flight Density Concept  \u003cbr\u003e    Observational Procedure and the Processing of Data  \u003cbr\u003ePart II. The Nature of Nocturnal Migration  \u003cbr\u003e    Horizontal Distribution of Birds on Narrow Fronts  \u003cbr\u003e    Density as a Function of the Hour of the Night  \u003cbr\u003e    Migration in Relation to Topography  \u003cbr\u003e    Geographical Factors and the Continental Density Pattern  \u003cbr\u003e    Migration and Meteorological Conditions  \u003cbr\u003eConclusions  \u003cbr\u003eLiterature Cited","brand":"VolumesOfValue","offers":[{"title":"Default Title","offer_id":47082899308784,"sku":"2940013554986","price":3.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013554986_p0.jpg?v=1763582715","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013554986","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}