Birkhead, Tim (Nombre personal)

Perrins, C.M. Avian ecology, 1984 (a.e.) CIP t.p. (T.R. Birkhead, B. Sc., D. Phil, lecturer in zoology, University of Sheffield)

The Atlantic Alcidae, 1985: CIP t.p. (Tim R. Birkhead)

The wisdom of birds, 2008: t.p. (Tim Birkhead) jkt. flap (prof. at the Univ. of Sheffield)