Rose, Lloyd, and James Bonthron. “Predation on a Eurasian Blue Tit (Cyanistes Caeruleus) by a Barred Grass Snake (Natrix Helvetica) in Great Britain”. Reptiles & Amphibians 31, no. 1 (February 23, 2024): e21688. Accessed May 17, 2024. https://journals.ku.edu/reptilesandamphibians/article/view/21688.