It was soon evident that the western robins were abundant about Georgetown, as they were on the plains and among the foothills. They were principally engaged just now in feeding their young, which had already left their nests. Presently I shall have more to say about these birds. Just now I was aware of some little strangers darting about in the air, uttering a fine, querulous note, and at length descending to the ground to feast daintily on the seeds of a low plant. Here I could see them plainly with my glass, for they gave me gracious permission to go quite near them. Their backs were striped, the predominant color being brown or dark gray, while the whitish under parts were streaked with dusk, and there were yellow decorations on the wings and tails, whether the birds were at rest or in flight. When the wings were spread and in motion, the golden ornamentation gave them a filmy appearance. On the wing, the birds, as I afterwards observed, often chirped a little lay that bore a close resemblance in certain parts to the "pe-chick-o-pe" of the American goldfinch. Indeed, a number of their notes suggested that bird, as did also their manner of flight, which was quite undulatory. The birds were the pine siskins. They are very common in the Rockies, ranging from an elevation of eight thousand feet to the timber-line. This pert and dainty little bird is the same wherever found in North America, having no need of the cognomen "western" prefixed to his name when he takes it into his wise little head to make his abode in the Rocky Mountains. _CLEAR CREEK VALLEY_ _A scene near Georgetown. The copses in the valley are the home of white-crowned sparrows, willow thrushes, Lincoln's sparrows and Wilson's warblers; the steep, bushy acclivities are selected by the spurred and green-tailed towhees, Audubon's and Macgillivray's warblers; while the western robins, pine siskins, and broad-tailed humming-birds range all over the region. The robins and siskins make some of their most thrilling plunges over such cliffs as are shown in the picture._ [Illustration] The reader will perhaps recall that a flock of pine siskins were seen, two years prior, in a patch of pine scrub a short distance below Leadville, at which time I was uncertain as to their identity. Oddly enough, that was the only time I saw these birds in my first trip to Colorado, but here in the Georgetown region, only seventy-five or a hundred miles farther north, no species were more plentiful than they.