466. Traill's flycatcher. Empidonax traillii. Fairly common summer resident; most common on the plains, but occurs in mountains up to 8,000 feet; breeds throughout its Colorado range.
467. Least flycatcher. Empidonax minimus. Rare migrant; west to eastern foothills; probably breeds, but no nests have been found.
468. Hammond's flycatcher. Empidonax hammondi. Common summer resident; comes east only to the western edge of the plains; breeds as high as 9,000 feet.
469. Wright's flycatcher. Empidonax wrightii. Abundant summer resident; breeds from 7,500 feet to 10,000.
474a. Pallid horned lark. Otocoris alpestris leucolæma. Abundant winter resident; literature on this bird somewhat confused on account, no doubt, of its close resemblance to the next; winters on the plains abundantly, and sparsely in the mountains.
474c. Desert horned lark. Otocoris alpestris arenicola. Abundant resident; winters on plains and in mountains up to 9,000 feet; breeds from plains to 13,000 feet; raises two broods.
475. American magpie. Pica pica hudsonica. Common resident; breeds commonly on the plains and in the foothills and lower mountains; a few breed as high as 11,000 feet.
478b. Long-crested jay. Cyanocitta stelleri diademata. Common resident; seldom strays far east of the foothills; breeds from base of foothills to timber-line; winter range from edge of plains almost to 10,000 feet.
480. Woodhouse's jay. Aphelocoma woodhousei. Common resident; most common along the base of foothills and lower wooded mountains; sometimes breeds as high as 8,000 feet; in fall roams up to 9,500 in special instances.
484a. Rocky Mountain jay. Perisoreus canadensis capitalis. Common resident; remains near timber-line throughout the year.