1965. The transequatorial migration of the Manx Shearwater (Puffin des anglais). Oiseau Rev. Fr. Ornithol. 35: 130-140.

Van Tyne, J. and A. J. Berger.

1959. Fundamentals of ornithology. John Wiley & Sons, Inc. New York. 624 p.

Viguier, C.

1882. Le sens de l'orientation et ses organes. Rev. Philos. 14: 1-36.

Voous, K. H. and J. Wattel.

1963. Distribution and migration of the Greater Shearwater. Ardea 51: 143-157.

Walcott, D. and M. Michener.

1967. Analysis of tracks of single homing pigeons. Proc. XIV Int. Ornithol. Cong.: 311-329.

Wallraff, H. G.