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Prior to commencing ground disturbance_ Surve s Initial and/or follow up surveys shall be conducted no greater than 14 days prior to construction for burrowing owl and Swainson's hawk. If these species are observed nesting on the project site then the following Incidental Take Minimization Measures shall be implemented. 5.2.4.11 Swainson's hawk The Project Proponent has the option of retaining known or potential Swainson's hawk nest trees (i.e., trees that hawks are known to have nested in within the past three years or trees, such as large oaks, which the hawks prefer for nesting) or removing the nest trees. If the Project Proponent elects to retain a nest tree, and in order to encourage tree retention, the following Incidental Take Minimization Measure shall be implemented during construction activities: If a nest tree becomes occupied during construction activities, then all construction activities shall remain a distance of two times the dripline of the tree, measured from the nest. If the Project Proponent elects to remove.a nest tree, then nest trees may be removed between September 1 and February 15, when the nests are unoccupied. These Incidental Take Minimization Measures are consistent with the provisions of the Migratory Bird Treaty Act as described in Section 5.2.3.1(G). 5.2.4.15 Burrowing Owls The presence of ground squirrels and squirrel burrows are attractive to burrowing owls. Burrowing owls may therefore be discouraged from entering or occupying construction areas by discouraging the presence of ground squirrels To accomplish this, the Project Proponent should prevent ground squirrels from occupying the project site early in the planning process by employing one of the following practices: A. The Project Proponent may plant new vegetation or retain existing vegetation entirely covering the site at a height of approximately 36" above the ground. Vegetation should be retained until construction begins. Vegetation will discourage both ground squirrel and owl use of the site. ect site B. Alternatively, if burrowing owlsare forot known or red legged frogpeCSan Joaquin kit fox, ordtiger area is an unlikely occupation salamanders: The Project Proponent may disc or plow the entire project site to destroy any ground squirrel burrows. At the same time burrows are destroyed, ground squirrels should be removed through one of the following approved methods to prevent reoccupation of the project site. Detailed descriptions of these methods are included in Appendix A, Protecting Endangered Species, Interim Measures for Use of Pesticides in San Joaquin County, dated March, 2000: Desna 2