The phrase "wee thump" is of Paiute origin and means ancient ones, and in this case references the spectacular Joshua tree forest covering this site. The eastern boundary of the IBA lies about six miles west of Searchlight, and stretches to the eastern slope of the McCullough Mountains. The IBA takes in the densest stands of the Joshua forest. NV 164 crosses the IBA on the east-west axis, and a couple of two-track dirt roads also penetrate the area. About a third of the site was designated Wilderness in 2002.

Ornithological Summary

Nest cavities are one resource that are almost exclusively absent from desert sites, and it is this resource that makes Wee Thump unique. The ancient Joshua trees, many estimated to be over 250 years old, do offer cavities and so there is a unique guild of cavity nesters at the site. Infact, the cavities not only provide important nesting opportunities but offer winter refuges for certain bird species as well. These birds include Western Bluebird, Gilded Flicker, Northern Flicker, and Hairy Woodpeckers. Ash-throated Flycatchers are abundant here. Birds from McCullough Mountains (e.g., red-shafted flicker) probably migrate altitudinally in winter to weather the colder season here.

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