File:Histomoniasis.jpg

Histomoniasis, or Blackhead disease. Large, pale areas in the liver of a bird infected with Histomonas sp.

Photo credit:Milton Friend

Source:U.S. Geological Survey National Wildlife Health Center Field Manual of Wildlife Diseases: General Field Procedures and Diseases of Birds archive copy at the Wayback Machine, Chapter 35 "Miscellaneous parasitic diseases".

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