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APPENDIX I - BIOLOGICAL RESOURCES developed. Such an assumption could only be invalidated by a spring-summer survey to document Swainson's hawk foraging patterns in the project site area. Mitigation Measure 4.7-1(a) Redesign the development to position the 26 homesites as far away as possible from the Brovelli Woods Swainson's hawk nesting habitat and presumed productive foraging habitat such as the Tracy Lakes shoreline area and lakebed. 4.7-1(b) Eliminate the golf course. 4.7-1(c) Eliminate the proposed private access road to Davis Road which would further impact the Brovelli nesting area. 4.7-1(d) Realign the segment of the equestrian trail which extends through Brovelli Woods to the outside edge of the woodland. 4.7-1(e) In accordance with Section II-3-B-c of the CDFG Mitigation Guidelines for the Swainson's hawk, (Appendix F) purchase and dedicate for preservation a minimum of 12.5 acres off-site of prime mature riparian forest within the Dry Creek Swainson's hawk subpopulation area to replace the 12.5 acres previously cleared. It should be noted that the restoration project presently underway in the south central part of the site cannot be considered adequate mitigation for the loss of critical Swainson's hawk nesting habitat because it would take at least SO years for such a stand of young oak sapling to grow to the size required for nesting by this species. The purpose of the Endangered Species Act is to preserve critical habitat now, as opposed to providing more in the future when the species could very well be extinct within the region in question. 4.7-1(f) Retain an expert in raptor ecology to study the current state of Brovelli Woods and develop a habitat enhancement plan for the recently cleared 12.5-acre riparian woodland community. Upon approval by CDFG, the plan should be implemented and monitored for a minimum of five years. The developer should be responsible for the cost of restoration. 4.7-1(g) Prohibit use of rodenticides on the entire project area. The applicant's integrated pest managementplan should include measures for controlling rodents without the use of chemical applications. 23