1. Bang, B.G. and Wenzel, B.M. 1986. Nasal cavity and olfactory system. Pl. 195–225 in Form and function in birds, vol. 3 ( A.S. King and J. McLelland, Eds.). London, Academic Press.
2. Bell, W.J. and Carde, R.T. 1984. Chemical ecology of insects. Sunderland, MA, Sinauer Associates, Inc.
3. Bent, A.C. 1963. Petrels and pelicans and their allies. New York, Dover. Brinton, E. 1967. Vertical migration and avoidance capability of euphausiids in the California current. Limnol. Oceanoqr. 12: 451–483.
4. Brown, R.G.B. 1980. Seabirds as marine animals. Pp 1–39 in Behavior of marine animals. vol. 4, Marine birds (J. Burger, B.L. 011a and H.E. Winn, Eds). New York, Plenum Press.
5. Clark, L. 1991. Odor detection thresholds in tree swallows and cedar waxwings. Auk 108: 177–180.