LIDICKER 1958 (June 27 cont.) At 12.3 mi. S Casco we saw 3+ Black Vultures - the first of this species noted. 2 mi further the ocotillo begins to thin out & the way is gets scrubbier - this is probably less good merriami- habitat. Beyond this the ocotillo again becomes thick but the shrubs remain thick also. About 18.5 mi. S Casco you cross the Rio Nagoz. About a mile further the country opens up again into what seems similar to that traversed i'5-6 (34 mi. SSE La Zarca). At 1 1/2 mi. S of the Rio Nagos we saw Wh. w. Dove-1, Scalded Quail-1, & Brown Towhee-1. 4 mi. beyond the Rio we saw 2 more Blk. Vultures & 3 Turkey Vult. Just S of La Cuesta a large cave can be seen from the road. The soil is quite gravelly S of La Cuesta, but merriami may be present. Shortly the rd. climbs up out of the valley & up on the top of one of these hills is where we made camp (3.7 mi. by road S La Cuesta). The area is quite gravelly & very dry. We set out 65 traps. June 28 Catch : Penogmus (Prot. Nelsoni) - 5 large skink - 1 Also shot a Crendithorn Bird list for camp: Pythuloxia Brown Towhee