Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
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Transcription
TABLE 1. Summary of Diurnal observations, Eastern Grid Survey 19, 14-21 December 1967.
# Miles # Hours # Birds # Species Lin/density
14 December 0 0 0 0 0
15 " 96 10.0 108 11 1.125
16 " 100 9.7 87 10 0.870
17 " 84 10.1 43 7 0.511
18 " 110 9.9 25 6 0.227
19 " 107 10.1 31 7 0.290
20 " 101 10.1 19 5 0.200
21 " 60 5.1 12 6
Totals 658 65.0 325 15 0.493