<i><a href="https://en.wikipedia.org/wiki/en:Corvus_brachyrhynchos" class="extiw" title="w:en:Corvus brachyrhynchos">Corvus brachyrhynchos</a></i> (American crow) as drawn by Fisher, for the U.S. Agriculture Year Book, 1894.
Fisher, Year Book, U.S. Department of Agriculture, 1894
2011-09-20
<i>The birds of Indiana : a descriptive catalog of the birds that have been observed within the state, with an account of their habits</i> / by Amos W. Butler. 1898. <a rel="nofollow" class="external free" href="https://www.biodiversitylibrary.org/bibliography/15008">https://www.biodiversitylibrary.org/bibliography/15008</a>