Clark's Crow on <i>Mount Hood</i> from Bird-Lore, Volume I, No. 2<i></i>
<bdi><a href="https://en.wikipedia.org/wiki/en:Frank_Chapman_(ornithologist)" class="extiw" title="w:en:Frank Chapman (ornithologist)"><span title="American ornithologist">Frank Michler Chapman</span></a>
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