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n <br />~~ <br />t y-on-~,.,niper wooalana on the eastern portion of G.e mina bounc,~-uy. This individ- <br />ual was observed foraging for insects in a rocky outcropping. One yellcxa <br />warbler was observed in the grove of trees northeast of the farmhouse on <br />the study area. Yellow warblers are oo;rmonly found in thickets and orchards. <br />Raptorial Birds. The study area is used as hunting habitat for at least five <br />different raptor species: red-tailed hawk, Arerican kestrel, Cooper's hawk, <br />rough-legged hawk, and Harsh hawk. Location of all sightings of these species <br />are provided in Appendix A, Map 11-2_ The occurrence and seasonal use of tre. <br />study area and potential inq~ortant habitat (i.e., nesting) is discussed below - <br />for each of the raptor species observed on the study area. <br />Red-tailed haws. fine Nucla study area occurs on t':e border between the si.mrxr <br />and winter range of the red-tailed hawk (Robbins et al. 1966). tbwever, this <br />raptor was not observed during winter field studies at Nucla. Four observa- <br />tions did occur near t*~e study area during t.'~e period :lay -September, 1979. <br />Observations included one pair of red-tailed hawks hunting the spoil piles <br />approximately ;mile south of the mine headrsuarters and one red-tailed hawk <br />approximately one mile west of the study area in September, 1979. <br />Red-tailed hawk nests were not located on the Nucla study area during 1979. <br />However, one female red-tailed hawk was observed on a stick nest in a cotton- <br />wood grove located approximately one mile east of the mine headqua~.'tess in May, <br />1979. The number of young in the nest was not determined. <br />Red-tailed hawks ooimnnly nest on sheer cliff faces or in trees located in <br />agricultural areas. Potential nesting habitat in the Nucla study area exists <br />inthe trees along the riparian habitat and in the wind break ~mrtheast of <br />the farmhouse. Potential nesting opportunities are greater offsite; sand- <br />stone cliffs and outcroppings and pinyon-juniper woodlands occur east of the <br />mine permit boundry. <br />Cooper's hawk. The Nucla study area occurs within year-round range of the <br />Cooper's hawk. Only one Cooper's hawk was observed near the study azea; <br />this individual was sighted approxi-Lat>ly '~ mile south of the mine head~CyUarters <br />~_ -37- <br />Aux i s +9eo <br />• (Revised July 2006) Attachment 2.04.11-1-44 <br />