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H-16 <br />2.361, the vesper sparrow (B = 2.21), and the Brewer's sparrow (B = <br />2.12) are the most flexible species in their ability to live in various <br />habitat types in the study area. Each of these species occurred in <br />three or four habitat types. However, 16 of the 24 species were not <br />encountered in more than one habitat (B = 1.00). This indicates that <br />either most songbil°d species that occur on the study area strongly <br />prefer one habitat, or that the density of birds was too low to indi- <br />cate actual habitat preference. <br />Raptors <br />The proposed project area is inhabitated throughout the year by a <br />variety of raptors. Common breeders include American kestrel, golden <br />eagle, red-tailed hawk, Cooper's hawk and long-eared owl (BLM 1984a). <br />The sharp-shinned hawk and goshawk are relatively rare breeding resi- <br />dents. The rough-legged hawk and bald eagle forage in open vegetative <br />• types throughout Piceance Basin during the winter months (BLM 1984a). <br />Although unknown at this time, it is very likely that Cooper's hawk, <br />long-eared owl and possibly sharp-shinned hawk and goshawk nest in <br />pinyon-juniper woodlands within the project area (BLM 1984a). <br />Generally, local breeding raptors construct or return to traditional <br />nest sites in mid-FE~bru ary to early April to lay their eggs sometime in <br />March or April. Nest occupation continues until chicks are fledged <br />which, depending on when nesting activities began, occurs from early <br />June to mid-August (BLM 1984a). <br />The results of the spring raptor survey indicates that the proposed <br />project area was not a high use area for raptor species during 1984. <br />During this survey, one great horned owl was observed in a mesic <br />drainage along thF~ western boundary of Section,27. No nest was <br />tound, and no sign was observed, indicating that this was not a <br />. frequented roosting site. The only nest that was observed was a large <br />THIS DOCUMENT CONTAINS TRADE SECRETS AND PRI VILEGE D, CONFIDENTIAL AND ~~~~rrrr.... ,~ <br />'ROPRIETARY COMMF:RCIA L, FINANCIAL, GEOLOGICAL AND GEOPHYSICAL DATA ANF~~~V ~ ~j OC (~ ~ <br />INFORMATION. PU R;iUANT TO LAW, THOSE PORTIONS MARKED "CONFIDENTIAL" n J ` 7 <br />MAY NOT BE DISCLO:iE D, COPIED OR MADE AVAILABLE FOR PUBLIC INSPECTION. <br />