Journal of Animal Diversity

Journal of Animal Diversity

State of knowledge on the Diet of the Barn owl Tyto alba (Scopoli, 1769) in Sicily, Central Mediterranean (Italy): a Review

Document Type : Review Article

Authors
Department of Biological, Geological and Environmental Sciences - Section of Animal Biology, University of Catania, Via Androne 81, 95124 Catania, Italy
10.22034/JAD.2026.8.1.1
Abstract
This paper reviews the current state of knowledge regarding the diet of the Barn owl, Tyto alba (Scopoli, 1769), in Sicily through a synthesis and comparative analysis of previous studies conducted on the island. The available evidence indicates that the Barn owl in Sicily primarily preys on small mammals, with a clear preference for Microtus nebrodensis (Minà-Palumbo, 1868). However, the availability of this rodent varies according to habitat and season, resulting in both seasonal and habitat-related variations in diet and a broader trophic spectrum that includes other small mammals and additional taxa. This dietary flexibility highlights the opportunistic feeding strategy of the species and its ability to adapt to the environmental heterogeneity of the Sicilian landscape. The review also emphasizes the need for further investigations to update the current knowledge and address the remaining gaps, particularly in areas of the island that remain poorly studied.
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Bellia, E., Grillo, F., Sara, M. and Mascara, R. (2009). Abitudini alimentari di Tyto alba legate all'uso del suolo. Alula, 16 (1–2): 348–350. (In Italian)
Catalisano, A. and Massa, B. (1987). Considerations on the structure of the diet of the Barn owl (Tyto alba) in Sicily (Italy). Italian Journal of Zoology, 54 (1): 69–73.
Contoli, L., Ragonese, B. and Tizi, L. (1978). Sul sistema trofico "Micromammiferi–Tyto alba" nei pantani di vendicari [On the trophic system "Small mammals–Barn owl" in Vendicari Marsh]. Animalia, 5 (13): 79–105. (In Italian)
Contoli, L., Salucci, M. P. and Vigna Taglianti, A. (1987). Per una biogeografia dei sistemi trofici: il sistema "mammiferi terragnoli-Tyto alba" nell'Italia peninsulare e nelle isole maggiori. Biogeographia – The Journal of Integrative Biogeography, 11 (1): 493–507.
Di Russo, C. (1987). Small mammals in Barn owl, Tyto alba, pellets from central-east Sardinia/Dati sui micromammiferi da borre di barbagianni, Tyto alba, di un sito della Sardegna centro-orientale. Hystrix, the Italian Journal of Mammalogy, 2 (1): 57–66.
Heisler, L. M., Somers, C. M. and Poulin, R. G. (2016). Owl pellets: a more effective alternative to conventional trapping for broad‐scale studies of small mammal communities. Methods in Ecology and Evolution, 7 (1): 96103.
Massa, B. and Sarà, M. (1982). Dieta comparata del barbagianni Tyto alba (Scopoli) in ambienti boschivi, rurali e suburbani della Sicilia (Aves, Strigiformes). Naturalista sicil, Palermo, 6: 3–15. (In Italian)
Milana, G., Luiselli, L. and Amori, G. (2018). Forty years of dietary studies on Barn owl (Tyto alba) reveal long term trends in diversity metrics of small mammal prey. Animal Biology, 68 (2): 129–146.
Sarà, M. and Zanca, L. (1988). Nicchia trofica di Tyto alba in ambienti insulari del Mediterraneo. Atti IV Convegno italiano di Ornitologia, Il Naturalista siciliano, 12: 173–180. (In Italian)
Scaravelli, D., Di Simone, I. and Ientile, R. (2018). Ritorno al futuro: micromammiferi come prede di Tyto alba ai Pantani di Vendicari (Sicilia orientale) 48 dopo 40 anni. In: III Convegno Nazionale Piccoli Mammiferi, 8-9/11/2017, Colle Val d'Elsa (SI), Libro dei riassunti, Italy. p. 41. (In Italian)
Siracusa, A. M. (1999). Dati sulla dieta del barbagianni (Tyto alba) in ambiente urbano in Sicilia. Naturalista Siciliano, 23: 587–589. (In Italian)
Siracusa, A. M., Santitto, A., Camarda, D., and D'Urso, V. (2022). Small mammal community in a Mediterranean target area of Sicily by the data from the long-eared owl pellets. Russian Journal of Theriology, 21 (2): 169–179.
Siracusa, M. and Ciaccio, A. (1985). Dieta del barbagianni, Tyto alba, e sue variazioni stagionali in un'area della Sicilia sud-occidentale. Rivista Italiana di Ornitologia, 55: 151–160. (In Italian)
Torre, A. (1983). Variazione stagionale dell'alimentazione del barbagianni Tyto alba ernesti nel nord-ovest della Sardegna. Avocetta, 7: 85–94. (In Italian)