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<p>This field book was created by an unknown author in June 1967 during work conducted for the Pacific Ocean Biological Survey Program. The field book includes detailed observations of bird flocks and birds in flight, possibly over Johnston Island. Some notes include time and number of birds observed
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<br>Subjects: Pacific Ocean Biological Survey Program; Ornithology</div>
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National Museum of Natural History (U.S.) Pacific Ocean Biological Survey Program</div>
<dl><dd><a rel="nofollow" class="external free" href="https://archive.org/details/sandjohnstonoct00nati">https://archive.org/details/sandjohnstonoct00nati</a></dd>
<dd><a rel="nofollow" class="external free" href="https://archive.org/download/sandjohnstonoct00nati/sandjohnstonoct00nati.pdf">https://archive.org/download/sandjohnstonoct00nati/sandjohnstonoct00nati.pdf</a></dd></dl>