Mammals in Tawny Owl (Strix aluco) pellets from Kharkiv Region, Ukraine

The dataset contains data of mammals found in Tawny owl pellets collected during up to 13-year studies (2005-2017) in Kharkiv region, Ukraine, in three territories. Data from broadleaved forests in National Nature Park Homilsha Forests and Kharkiv Forest Park were collected in systematic way when all found pellets were removed from each site two or three times a year. Data from broadleaved and pine forests in National Nature Park Slobozhanskyi were sampled one time from each site. Presented data allow to make analysis of seasonal, year-to-year and habitat variability in Tawny owl diet and local mammal species composition.