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City of Pleasanton—Hidden Canyon Residences and Preserve Biological Resources Draft EIR 3.3-12 FirstCarbon Solutions https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-03 Bio Resources.docx Scientific Name Common Name Status Habitat Description3 Potential to Occur and Rationale USFWS1 CDFW2 Code Designations 1 Federal Status: 2025 USFWS Listing 2 State Status: 2025 CDFW Listing FT = Listed as threatened under the Endangered Species Act. MBTA = protected by Migratory Bird Treaty Act — = Not federally listed ST = Listed as threatened under CESA. SC = Candidate for listing under CESA. SSC = Species of Special Concern as identified by CDFW. FP = Listed as fully protected under the Fish and Game Code. FGC = protected by Fish and Game Code Section 3503.5 — = Not State-listed 3 Habitat description: Habitat description adapted from California Natural Diversity Database (CNDDB). California Red-legged Frog The United States Fish and Wildlife Service (USFWS) listed the California red-legged frog (CRLF) as Threatened under authority of the federal Endangered Species Act. The species has been extirpated from 70 percent of its historic range and remaining populations are currently threatened by a wide variety of human impacts. Although protocol-level CRLF surveys were not conducted, LOA Biologists visited the site on March 28, 2014, to evaluate potential presence of CRLF habitat. Although much of the project site (the western portion) is within Critical Habitat for CRLF, the site only supports dispersal habitat for CRLF in the form of Devaney Canyon and does not support breeding habitat for CRLF, as permanent aquatic habitats and deep pools of water were lacking in stream channels. Downstream habitat within Devaney Creek does not appear to support suitable habitat for CRLF. Surveys to evaluate suitability of nearby off-site stock ponds for CRLF were not conducted. CRLF movement through the project site is unlikely due to existing residential development and potential predator encounters. Alameda Whipsnake The Alameda whipsnake is a federally and State-listed threatened species. LOA Biologists concluded that suitable habitat does occur on the project site for all life stages of Alameda whipsnake. Rock piles provide hibernacula and food sources, riparian and mixed woodlands provide suitable habitat, and grasslands adjacent to these woodlands may be used as foraging and dispersal habitat. Almost the entire site is located within Critical Habitat designated by the USFWS for Alameda whipsnake, and suitable habitat also occurs within adjacent open space areas. Other Special Special-Status Species Other species with potential to occur on the project site include white-tailed kite, northern harrier, Crotch’s bumble bee, golden eagle, San Francisco dusky-footed woodrat, American badger, and ringtail. White-tailed kite, northern harrier, golden eagle, San Francisco dusky-footed woodrat, and ringtail may occur more frequently as regular foragers or may be resident on the project site. These species