Bird Walk at Quartz Trailhead Join Kathe Anderson and Rick Pearce on this easy hike of 2 miles over rocky trail. In addition to seeing our year-round bird residents, we are likely to see some migrants passing through. Possible sightings include: phainopepla, American kestrel, gilded flicker, curve-billed thrasher, Apert’s towhee or various warblers.. Quartz trail