Orange-winged Amazon Parrot Incubation Series
Several of these photographs also appear in "Orange-winged Amazon parrot (Amazona amazonica) embryo development: photographic candling analysis of artificially-incubated eggs, by M.E. Delany, L.A. Tell, J.R. Millam and D.M. Preisler in the Journal of Avian Medicine and Surgery (in press).