Potential Toxicity of Fenbendazole to Gyps Vultures on the Indian Subcontinent: A Review

A recent paper 'Potential Toxicity of Fenbendazole to Gyps Vultures on the Indian Subcontinent: A Review' suggests that some avian species may be more susceptible to fenbendazole toxicity than others. 

Gyps vultures endemic to the Indian subcontinent are already endangered due to toxicity caused by residual diclofenac in carcasses of various species of livestock treated by diclofenac prior to death. Remaining small and fragmented vulture populations are vulnerable to diclofenac-induced mortalities. A survey of the literature revealed fenbendazole toxicity in many species of domesticated and wild birds. Residues of fenbendazole in carcasses of livestock could be ingested by Gypsvultures in a similar way to diclofenac. 

For the full paper please see: Potential Toxicity of Fenbendazole to Gyps Vultures on the Indian Subcontinent: A Review, by Pradeep Sharma, Journal of Raptor Research, 50(2):207-210 http://dx.doi.org/10.3356/rapt-50-02-207-210.1  http://www.bioone.org/doi/10.3356/rapt-50-02-207-210.1