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~• <br />April, this lek was ground-truthed at dawn by BLM and Western Fuels <br />biologists. A total of 16 grouse were observed in two groups; one <br />group consisted of 12 males, the second group consisted of 3 males <br />and one female. No strutting was observed during this .field <br />Investigation (WIII Wright, Western Fuels Association, Lakewood, <br />Colo., pers. comm.). <br />On 18 April, while flying toward the mine permit area, six male <br />sage grouse were observed strutting just south of the east-west <br />hogback that occurs in section 13 (Map 2). The birds could not be <br />found, however, upon returning to this site at a lower elevation. <br />The site was carefully searched on two subsequent flights, but again <br />no grouse were observed. Because of the uncertainty of the exact <br />location and number of birds at this lek, the symbol shown on Map 2 <br />1 Is accompanied by a question mark. <br />Other Observations <br />Wild horses were observed at the extrane western end of the <br />corridor on most flights. Group sizes and locations are shown on <br />Map 3. Sightings which occurred outside the mapped area (indicated <br />as such in Table 1) were sightings that were made further to the <br />west, usually from 5 to 15 miles from the locations shown on Map 3. <br />Raptorial birds were lndentlfled when possible during all <br />aerial flights. Sightings and Indentificatlons are shown on Map 1, <br />2, and 3 and In Table 1. Presently a study is being conducted on <br />Ferruginous hawks In the study area. For a recent report see <br />3 <br />6 <br />