![Geography of California / Geography of the United States / Pixley National Wildlife Refuge / S100 / Ruby Lake National Wildlife Refuge / California Geography of California / Geography of the United States / Pixley National Wildlife Refuge / S100 / Ruby Lake National Wildlife Refuge / California](https://www.pdfsearch.io/img/375faae7e682595badeca3c773b3991d.jpg) Date: 2014-01-16 10:26:46Geography of California Geography of the United States Pixley National Wildlife Refuge S100 Ruby Lake National Wildlife Refuge California | | Waterfowl Census and Species Determination from small Unmanned Aircraft Systems Three proof-of-concept low altitude unmanned aerial missions were conducted in November and December of 2013, specifically aimed at investigAdd to Reading ListSource URL: uas.usgs.govDownload Document from Source Website File Size: 298,42 KBShare Document on Facebook
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