Pell, F. S. E. D., Senar, J. C., & Hatchwell, B. J. Heterospecific nest material kleptoparasitism: Observations of grey herons, Ardea cinerea, removing material from the nests of monk parakeets, Myiopsitta monachus. Museu de Ciències Naturals de Barcelona.
Chicago Style (17th ed.) CitationPell, F. S. E. Dawson, J. C. Senar, and B. J. Hatchwell. Heterospecific Nest Material Kleptoparasitism: Observations of Grey Herons, Ardea Cinerea, Removing Material from the Nests of Monk Parakeets, Myiopsitta Monachus. Museu de Ciències Naturals de Barcelona.
MLA (9th ed.) CitationPell, F. S. E. Dawson, et al. Heterospecific Nest Material Kleptoparasitism: Observations of Grey Herons, Ardea Cinerea, Removing Material from the Nests of Monk Parakeets, Myiopsitta Monachus. Museu de Ciències Naturals de Barcelona.