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Why do zoos attract crows? A comparative study from Europe and Asia.
Kövér L, Lengyel S, Takenaka M, Kirchmeir A, Uhl F, Miller R, Schwab C. Kövér L, et al. Among authors: uhl f. Ecol Evol. 2019 Nov 26;9(24):14465-14475. doi: 10.1002/ece3.5881. eCollection 2019 Dec. Ecol Evol. 2019. PMID: 31938533 Free PMC article.