D. A.  Boyce, Jr. and Kiff, L. F., ?Have the eggs of the Orange-breasted Falcon (Falco deiroleucus) been described??, Journal of Raptor Research, vol. 15, pp. 89-93, 1981.

T. G.  Balgooyen, ?Natural history of the American Kestrel in Venezuela?, Journal of Raptor Resarch, vol. 23, pp. 85-93, 1989.

W.  Burnham, Sandfort, C., and Belthoff, J. R., ?Peregrine Falcon eggs: egg size, hatchling sex, and clutch sex ratios?, Condor, vol. 105, pp. 327-335, 2003.