The Javan Hawk-eagle, Nisaetus bartelsi is a medium-sized, approximately 61cm long, dark brown raptor in the family Accipitridae. It has a long crest, rufous head and neck, and heavily barred black below. The crest is black with white tip. Both sexes are similar. The young is duller and has unmarked underparts.
The Java Hawk Eagle is classified as Endangered (EN), considered to be facing a very high risk of extinction in the wild.
The Java hawk eagle Spizaetus bartelsi: results of recent research on distribution status and ecology. The Java hawk eagle Spizaetus bartelsi. WWGBP Project Report No. 1, March 1990. Java hawk eagle conservation project. Java implementation of SNNAP expands access to neural simulation software. The java local fauna pleistocene of south dakota a preliminary report. The Java local fauna, Pleistocene of South Dakota: a preliminary report. More