Navalpotro, H., Pagani–Núñez, E., Hernández–Gómez, S., & Senar, J. (2016). Comparing prey composition and prey size delivered to nestlings by great tits, Parus major, and blue tits, Cyanistes caeruleus, in a Mediterranean sclerophyllous mixed forest. Animal Biodiversity and Conservation, 39(1), 129-139. https://doi.org/10.32800/abc.2016.39.0129