M ller, A. P. 1990. Effects of parasitism by a hematophagous mite on reproduction in the Barn Swallow. M ller, A. P. 1992. Parasites differentially increase the degree of fluctuating asymmetry in secondary sexual characters. M ller, A. P. 1993.
Ectoparasites increase the cost of reproduction in their hosts .
Moore, W. S. 1995. Blackie, Glasgow and London. Moreau, R. 1944. A comparative study, with special reference to African birds . Morton, M. L. 1976.