The Roman History · Amm. 22.15.19

Some also are killed by means of a little bird called the trochilus, which, while seeking for some picking of small food, and flying gently about the beast while asleep, tickles its cheeks till it comes to the neighbourhood of its throat. And when the hydrus, which is a kind of ichneumon, perceives this, it penetrates into its mouth, which the bird has caused to open, and descends into its stomach, where it devours its entrails, and then comes forth again.

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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