28 UNIVERSITY OF COLORADO STUDIES 
304 Lagopus leucurus—White-tailed ptarmigan. 
308b Pediecetes phasianellus campestris—Prairie sharp-tailed grouse. 
333 Accipiter cooperi—Cooper hawk. 
349 Aquila chrysetos—Golden eagle. 
356 Falco peregrinus anatum—Duck hawk. 
372 Nyctala acadica—Saw-whet owl. 
373¢ Megascops asio maxwellig—Rocky Mountain screech owl. 
375a Bubo virginianus pallescens—Western horned owl. 
393¢ Dryobates villosus monticola—Rocky Mountain hairy woodpecker (as D. v. hylo- 
Scopus). 
3946 Dryobates pubescens homorus—Batchelder woodpecker (as D. v. orewcus). 
402a Sphyrapicus varius nuchalis—Red-naped sapsucker. 
404 Spyhrapicus ruber thyroideus—Williamson sapsucker. 
457 Sayornis saya—Say pheebe. 
459 Nuttallornis borealis—Olive-sided flycatcher. 
464 Empidonax dificilis—Western flycatcher. 
466 Empidonax traillii—trail flycatcher (as E. pusillus). 
468 Empidonax hammondi—Hammond flycatcher. 
469 Empidonax wrightii—Wright flycatcher. 
478b Cyanocitta stelleri diademata—Long-crested jay. 
491 Nucifraga columbiana—Clarke crow. 
Some of the articles were first published in The Awk, and only the 
more important items of his notes were used in each case. Mr. Gale’s 
notes are quoted to some extent in Professor Cooke’s bulletins on birds 
of Colorado, and have been recently used by the present writer in 
several articles for The Auk, The Condor, and Bird Lore. Altogether 
his notes discuss 163 species of northern Colorado birds, including those 
mentioned above, and definitely add twelve species to the hitherto 
recorded avifauna of Boulder County, as follows: 
4 Colymbus nigricollis californicus—American eared grebe. 
312 Columbo jfasciata—Band-tailed pigeon. 
368 Syrnium varium—Barred owl. 
467 Empidonax minimus—Least flycatcher. 
488 Corvus americanus—American crow. 
524a Leucosticte tephrocotis littoralis—Hepburn leucosticte. 
588 Pipilo maculatus arcticus—Arctic towhee. 
614 Iridoprocne bicolor—Tree swallow. 
616 Riparia riparia—Bank swallow. 
703 Mimus polyglottos—Mocking-bird. 
756a Hylocichla fuscescens salicicola—Willow thrush. 
769a Sialia mexicanus bairdi—Chestnut-backed bluebird. 
