Orta, J., Christie, D.A. & Garcia, E.F.J. (2018). Red Kite (Milvus milvus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/52977 on 23 June 2018).
Thiollay, J.M. (2018). Hawks, Eagles (Accipitridae). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/52213 on 23 June 2018).
