Class Aves
Order Accipitriformes
Family Accipitridae
Sites.
Wisconsin: Costeau Pit (Jefferson 1991a).
The current distribution within our region of this relatively rare hawk runs from the southwestern quarter of New Mexico through southeastern Arizona, thence to northwestern Arizona. It generally occurs in heavily wooded stream bottoms and canyons (Ligon 1961). If the questionable identification is correct, it would be east of the current range.
Sites.
Mid/Late Wisconsin: Animal Fair (Harris 1993c: ? gen. et sp.).
Late Wisconsin/Holocene: Stanton's Cave (Rea and Hargrave 1984).
Literature. Harris 1993c; Rea and Hargrave 1984.
Synonyms. Morphnus daggetti, Wetmoregyps daggetti.
Olson (2007) found that Wetmoregyps daggetti is essentially a large version (larger by about 40%) of the extant Savanna Hawk (Buteogallus meridionalis). This being the case, he transferred the taxon to Buteogallus. In comparing B. daggetti with the Savanna Hawk, he thought it likely that they shared an open grassland niche.
Sites.
Wisconsin: Carpinteria (Guthrie 2009).
Mid Wisconsin: Térapa (Steadman and Mead 2010).
Mid/Late Wisconsin: Rancho La Brea (Stock and Harris 1992).
Literature. Guthrie 2009; Olson 2007; Steadman and Mead 2010.
Synonyms—Geranoaëtus fragilis Miller. Urubitinga fragilis (Miller).
The Fragile Eagle was described from Rancho La Brea and reported from Shelter Cave by Howard and Miller (1933). Most members of the genus are tropical to subtropical in habitat and tend to enter only the southern parts of North America if at all.
Sites.
Wisconsin: Carpinteria (Guthrie 2009).
Mid Wisconsin: McKittrick (Jefferson 1991a).
Mid/Late Wisconsin: Rancho La Brea (Stock and Harris 1992); Shelter Cave (Howard and Miller 1933).
Late Wisconsin: Maricopa (Jefferson 1991a).
Literature. Guthrie 2009; Howard and Miller 1933; Jefferson 1991a; Stock and Harris 1992.
Last Update: 28 Jan 2014