KILLDEER, NEST, AND EGGS from <a href="https://en.wikisource.org/wiki/Bird-Lore/Volume_01/The_Camera_as_an_Aid_in_the_Study_of_Birds" class="extiw" title="s:Bird-Lore/Volume 01/The Camera as an Aid in the Study of Birds">The Camera as an Aid in the Study of Birds</a> <i>Bird-Lore, Vol. I, No. 2.</i>
Dr. Thos. S. Roberts
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