Some idyllic days were spent in sauntering about Golden, which keeps guard at the entrance of Clear Creek Cañon, and has tucked itself in a beautiful valley among the foothills, which in turn stand sentinel over it. In the village itself and along the bush-fringed border of the creek below, as well as in the little park at its border, there were many birds, nearly all of which have been described in the previous chapters. However, several exceptions are worthy of note. A matted copse a mile and a half below the town afforded a hiding-place for three young or female redstarts, which were "playing butterfly," as usual, and chanting their vivacious little tunes. These and several near Boulder were the only redstarts seen in my Colorado wanderings, although Professor Cooke says they breed sparingly on the plains, and a little more commonly in the mountains to an altitude of eight thousand feet, while one observer saw a female in July at the timber-line, which is three thousand feet above the normal range of the species. Why did not this birdlet remain within the bounds set by the scientific guild? Suit for contempt of court should be brought against it. Redstarts must have been very scarce in the regions over which I rambled, else I certainly should have noticed birds that are so fearless and so lavish of song. One day my companion and I clambered up the steep side of a mesa some distance below Golden--that is, the base of the mesa was below the village, while its top towered far above it. A mesa was a structural portion of Colorado topography that neither of the two ramblers had yet explored, and we were anxious to know something about its resources from a natural history point of view. It was hard climbing on account of the steepness of the acclivity, its rocky character, and the thick network of bushes and brambles in many places; but "excelsior" was our motto in all our mountaineering, and we allowed no surmountable difficulties to daunt us. What birds select such steep places for a habitat? Here lived in happy domesticity the lyrical green-tailed towhee, the bird of the liquid voice, the poet laureate of the steep, bushy mountain sides, just as the water-ousel is the poet of the cascades far down in the cañons and gulches; here also thrived the spurred towhees, one of which had tucked a nest beneath a bush cradling three speckled eggs. This was the second nest of this species I had found, albeit not the last. Here also dwelt the rock wren, a little bird that was new to me and that I had not found in the latitude of Colorado Springs either east or west of the continental divide. A description of this anchorite of the rocks will be given in a later chapter. I simply pause here to remark that he has a sort of "monarch-of-all-I-survey" air as he sits on a tall sandstone rock and blows the music from his Huon's horn on the messenger breezes. His wild melodies, often sounding like a blast from a bugle, are in