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City of Pleasanton—Hidden Canyon Residences and Preserve Biological Resources Draft EIR 3.3-26 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 the majority of which is contiguous with other open space lands to the north, south, and west. This on-site preserved open space will include a mosaic of habitat types including approximately 64 acres of California annual grassland, 24 acres of mixed riparian woodland, eight acres of oak woodland, and almost 2 acres of chaparral. This conservation land avoids and minimizes impacts to CRLF habitat. Therefore, project plans would result in a less than significant impact on CRLF upland, movement, and foraging habitat. Although the loss of habitat would be less than significant, the proposed project will result in some impacts to areas in proximity to the riparian corridors and harm or mortality to individual CRLF could occur during project construction activities should CRLF be present in these areas. Harm or mortality to individual CRLF would be considered a significant impact. However, with implementation of MM BIO-1b, which requires avoidance, minimization, and compensatory measures, impacts to this species would be lowered to a less than significant level under CEQA. Alameda Whipsnake The project site is located almost entirely within Critical Habitat for the Alameda whipsnake, and the proposed project would result in the loss of approximately 24 acres of upland habitat within the grading envelope that is suitable for all life stages of the whipsnake. Additionally, suitable habitat for the Alameda whipsnake exists immediately adjacent to the project’s boundaries. Therefore, the proposed project would result in the loss of approximately 24 acres of habitat for this species and could result in harm or mortality to individuals of this species, should they occur on the site during project construction activities. The loss of habitat and the potential harm or mortality to individuals of this species would be considered a significant impact of the proposed project. However, with implementation of MM BIO-1c, which requires avoidance, minimization, and compensatory measures, impacts to this species would be lowered to a less than significant level under CEQA. Nesting Birds Trees throughout the oak woodland and riparian woodland habitats of the project site and lone trees within the grasslands of the site provide suitable nesting habitat for tree-nesting raptors and migratory birds, including special-status species such as the white-tailed kite, northern harrier, and golden eagle. If a raptor or other migratory bird, regardless of its federal or State status, were to nest on or adjacent to the site prior to or during proposed construction activities, such activities could result in the abandonment of active nests or result in direct mortality to these birds. Construction activities that adversely affect the nesting success of raptors or result in mortality of individual birds would constitute a violation of State and federal laws and would be considered a potentially significant impact under CEQA. However, with implementation of MM BIO-1d, which requires pre- construction surveys, impacts would be reduced to a less than significant level under CEQA. American Badger The project site provides potential denning and foraging habitat for badgers. The proposed project would preserve in perpetuity 104.6 acres of the site as open space. This amount of open space would more than sufficiently compensate for any loss of badger habitat. Although the loss of such habitat would be a less than significant impact due to the availability of such habitat in the region