. Bulletin. Natural history; Natural history. 306 Illinois Natural History Survey Bulletin Vol. 33, Art. 3 the period of observation, or wind mea- surements were not available sufficient- ly near the flight path to permit analy- ses (, see Fig. 2). For the 14 selected thrushes, track direction data were significantly (1) duinng a single night's flight, (2) between different nights, or (3) during ascent or descent. From the numerous track segments measured for each of the 14 individuals, we se- available for flight in winds differing lected (for analysis and presentation). 15( 'Departed 195
. Bulletin. Natural history; Natural history. 306 Illinois Natural History Survey Bulletin Vol. 33, Art. 3 the period of observation, or wind mea- surements were not available sufficient- ly near the flight path to permit analy- ses (, see Fig. 2). For the 14 selected thrushes, track direction data were significantly (1) duinng a single night's flight, (2) between different nights, or (3) during ascent or descent. From the numerous track segments measured for each of the 14 individuals, we se- available for flight in winds differing lected (for analysis and presentation). 15( 'Departed 1955CST VECTOR SCALE (. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
