Kvist, Anders, Åke Lindström, and Ingrid Tulp. “Excessive Migratory Fattening in a Captive Bluethroat Luscinia S. Svecica”. Ornis Svecica 3, no. 3–4 (October 1, 1993): 161–164. Accessed November 21, 2024. https://journals.lub.lu.se/os/article/view/23041.