Part 37

Migration, 19-23, 51, 52, 63, 65, 66, 124, 277, 278.

Mocking-bird, 98, 301, 302.

Moraine Lake, 61, 66-73, 146.

Muir, John, 172, 173.

Nighthawk, eastern, 191. western, 24, 119, 129, 190, 191, 262.

Nutcracker (also crow) Clark's, 25, 67, 71, 72, 119, 122.

Nuthatch, pygmy, 119, 174, 279. white-breasted, 119.

Ohio, 21, 65, 141, 215.

Oriole, 25. Baltimore, 33-35. Bullock's 33-35, 97, 121, 192, 290. orchard, 34.

Owl, burrowing, 178-180.

Phoebe, 125. Say's, 125, 131, 270, 271.

Pike's Peak, 21, 26, 31, 38, 66, 71, 73, 83, 103, 104, 110, 129, 134, 146, 152, 159, 224, 239, 250, 252, 262, 281. ascent of, 47, 56-58. descent of, 49-56, 58-79. summit, 47-49, 58, 59, 60.

Pipit, American, 27, 49-52, 125, 239, 244, 254, 262.

Ptarmigan, white-tailed, 60, 248.

Pueblo, 117, 183.

Raven, 25, 53, 125.

Red Cliff, 38, 40, 109, 117, 120, 183.

Redstart, 184.

Rexford, Eben E., 192.

Ridgway, Robert, 24, 94, 136, 285, 303.

Roberts, Charles G. D., 69.

Robin, eastern, 32, 73, 95, 127, 205, 206. western, 22, 24, 31, 32, 55, 68, 70, 72, 73, 106, 121, 127, 129, 151, 192, 199, 200, 205-207, 210, 216, 231, 253, 270, 290.

Royal Gorge, 43, 117, 122.

Sandpiper, spotted, 51, 73, 163, 204, 271.

Sapsucker, red-naped, 211, 212. Williamson's, 75-79, 160, 161.

Seton, Ernest Thompson, 194, 229, 272.

Seven Lakes, 55, 61, 70, 71, 72, 104, 146.

Shrike, white-rumped, 98.