Attributes / relations provided by
♦ ¹Biological Records Centre Database of Insects and their Food Plants
♦ ²Prunus mahaleb and Birds: The High-Efficiency Seed Dispersal System of a Temperate Fruiting Tree, Carlos M. Herrera and Pedro Jordano, Ecological Monographs Vol. 51, No. 2 (Jun., 1981), pp. 203-218
♦ ³HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández
♦ ⁴Birds and berries: a study of an ecological interaction. Calton, Great Britain, Snow B.K., Snow D.W., 1988, T & AD Poyser. 268 p.