Named from Smith Creek Cave, Nevada, Willett's Hawk-eagle had a number of similarities with the Golden Eagle, but was larger and heavier (Howard 1935, 1962).
Howard, H. (1935). A new species of eagle from a Quaternary cave deposit in eastern Nevada. Condor 37: 206-209.
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The ornate hawk-eagle (Spizaetus ornatus) is a fairly large bird of prey from the tropical Americas. Formerly, some authorities referred to this species as ...
of identity of the Nevada species and the living South African bird are remote. The cave bird is therefore here described as. Spizaeitus willetti, new species.
The species Spizaetus willetti Howard, 1935, from the Pleistocene of Nevada, only known by a distal part of tarsometatarsus, has been referred to the genus ...
species,. Spizaetus willetti, and Teratornis incredibilis, arepeculiar to. Smith Creek Cave. Coragyps occidentalis ( 2 specimens ) has been recorded from ...
... (Spizaetus grinnelli); Willett's hawk-eagle (Spizaetus willetti); Caribbean titan hawk (Titanohierax). Several Accipiter spp. Powerful goshawk (Accipiter ...
HOWARD (1935) described a new species of eagle from the Pleistocene of Nevada, Spizaetus willetti HOWARD,. Page 17. - 137 -. 1935. This is a very large eagle ...
Spizaetus willetti Howard from which it also differs in having the facet for metatarsal I not so large or so lateral and the trochleae much more arched. It ...
... Spizaetus willetti, a moth Carolella willettana, a mammal Sorex willetti and several molluscs including Scaphander willetti and Astarte willetti.
