Donna J. Webb Evans, E. E., Netiffee-Osborne, J., Webb, D., Jay, P., & Flammer, K. (2009). Assessment of the Microbial Quality of Water Offered to Captive Psittacine Birds. JOURNAL OF AVIAN MEDICINE AND SURGERY, 23(1), 10–17. https://doi.org/10.1647/2008-017R.1 Flammer, K., Nettifee Osborne, J. A., Webb, D. J., Foster, L. E., Dillard, S. L., & Davis, J. L. (2008). Pharmacokinetics of voriconazole after oral administration of single and multiple doses in African grey parrots (Psittacus erithacus timneh). American Journal of Veterinary Research, 69(1), 114–121. https://doi.org/10.2460/ajvr.69.1.114