What we think a species’ habitat needs are versus what they will readily use, can often vary greatly, and in some cases be counter-intuitive to our perception. Gaining a more robust knowledge base regarding the variety of habitats a species may utilize is critical to conservation efforts seeking to successfully preserve/restore functional habitat for the benefit of the species. Westervelt Ecological Services (WES) was hired by the California High Speed High Speed Rail Authority to provide mitigation for impacts to Buena Vista Lake ornate shrew (Sorex ornatus relictus; BVLOS) habitat which resulted in the restoration and conservation of a duck club in western Kern County, referred to as the Lone Tree Mitigation Site. The Lone Tree Mitigation Site provides a case study exemplifying this knowledge dynamic by contrasting our perception of BVLOS habitat preferences with what the species will readily use and flourish in an arid landscape. This presentation highlights our understanding of general accepted BVLOS habitats preferences, what the species has demonstrated it will successfully use, and restoration outcomes garnered from the Lone Tree Mitigation Site experience.