[SBB] Pileated Woodpecker and Red-breasted Nuthatch on Skyline

This morning Frank Vanslager and I had a PILEATED WOODPECKER at MP SCL11.34 on the southern edge of Skyline Blvd where it was heard calling, was seen flying and as it worked it's way to the top of a conifer (with a missing top). Earlier Frank first heard the bird doing it's high pitched, fairly short territorial call at MP SCL11.20 (repeated later at SCL11.34 when we saw the bird). More interesting was the fact that the bird also did a very slow, and long Northern Flicker type call with an irregular rhythm and tone at MP SCL 11.34. We were not familiar with this call and were therefore unable to identify it when it was heard some 30-40 minutes earlier in upper Sanborn Skyline County Park across from the entrance to Castle Rock State Park. RED-BREASTED NUTHATCHES were heard softly calling from the tops of conifers thru out the area. As we were leaving Frank approached to within 7-8 feet of an alert but fearless and very plainly marked Audubon's YELLOW RUMPED WARBLER that was on the ground near his car. This bird was essentially all gray-brown with a very pale grayish-yellow throat, a bright yellow rump, and a lightly streaked belly but had no yellow on the flanks. I assume that this bird was a recently fledged juvenile. A quick stop at Charcoal Road produced BLACK-THROATED GRAY WARBLERS and LAZULI BUNTINGS in addition to the "usual suspects" while a stop at Monte Bello (Gate 5, the pond, and Gate 4) was not productive.