Is it really true about the unpalatable chickens? Every mention of "caloptine" that I can find is from 1878, and derives from the annual Report of the United States entomological commission, which expressed hope of making commercial locust products, mainly formic acid. That entomological comission is the cited Charles Riley. Nobody ever seems to mention the substance again.
Took a few clicks to track down source 10: https://history.nebraska.gov/wp-content/uploads/2017/11/doc_..., which in turn cites this book: https://www.amazon.com/Locust-Devastating-Mysterious-Disappe...
On that page you can click “read sample” and then search for “chicken” and the reference on page 3 seems to be the main source of that claim. Where that is quoting, I’m not sure.