G. Marie Zimmerman, ?Studies of the annual cycle of the swallow-tailed kite (Elanoides forficatus): migration, habitat use, and parasites?, Georgia Southern University, Statesboro, Georgia, U.S.A., 2004.

O.  Merkl, Bagyura, L., and Rózsa, L., ?Commensal insects inhabiting saker (Falco cherrug) nests in Hungary?, Ornis Hungarica, vol. 14, pp. 1 - 4, 2004.

N. Kerness Whiteman and Parker, P. G., ?Effects of host sociality on ectoparasite population biology?, Journal of Parasitology, vol. 90, no. 5, pp. 939 - 947, 2004.

J.  Rékási, ?Review: R. D. Price, R. A. Hellenthal, R. L. Palma, K. P. Johnson, D. H. Clayton: The chewing lice World checklist and biological overview. Illinois Natural History Survey Special Publication 24., 2003.?, Aquila, vol. 111, pp. 219 - 221, 2004.

N. Kerness Whiteman, Santiago-Alarcon, D., Johnson, K. P., and Parker, P. G., ?Differences in straggling rates between genera of dove lice (Insecta: Phthiraptera) reinforce population genetic and cophylogenetic patterns?, International Journal for Parasitology, vol. 34, no. 2004, pp. 1113 - 1119, 2004.