Birds of Song and Story: Free Audiobook and Listening Guide
Birds of Song and Story by Elizabeth Grinnell; Joseph Grinnell: the LibriVox audiobook summary, 17 original MP3 tracks, 4:33:25 running time and a link to listen.
#ornithology
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The Bird Study Book: Free Audiobook and Listening Guide
The Bird Study Book by Thomas Gilbert Pearson: the LibriVox audiobook summary, 12 original MP3 tracks, 4:01:29 running time and a link to listen.