Collar, N.J. & Andrew, P. 1988. Birds to Watch: The ICBP Check-list of Threatened Birds.

Dallmann, M. 1987. Der Zaunkönig.

Fiuczynski, D. 1987. Der Baumfalke. Die Neue Brehm-Bücherei No. 575.

Fry, C.H., Keith, S. & Urban, E.K. 1988. The Birds of Africa, Vol. III.

Furness, R.W. 1987. The Skuas.

Hölzinger, J. 1987. Die Vögel Baden-Württembergs 1 (Parts 1–3).

Johnson, T.H. 1988. Biodiversity and Conservation in the Caribbean: Profiles of Selected Islands.

Klaus, S., Andreev, A.V., Bergmann, H.-H., Müller, F., Porkert, J. & Wiesner, J. 1986. Die Auerhiihner. Die Neue Brehm-Biicherei No. 86.

Pyle, P., Howell, S.N.G., Yunick, R.P. & DeSante, D.F. 1987. Identification Guide to North American Passerines.

Snow, D. & B. 1988. Birds and Berries.

SOVON 1987 (eds. J. Bekhuis(et al.). Atlas van de Nederlandse Vogels.

Nederlandse Broedvogels (1979). A long English summary at the end enables readers unfamiliar with Dutch to extract the maximum possible amount of information from this impressive work.

Toivanen, A. & Toivanen, P. (eds) Avian Immunology: Basis and Practice. 2 volumes.