448. =Cassin's kingbird.= TYRANNUS VOCIFERANS. Common summer resident; breeds on plains and up to 9,000 feet in mountains; occurs throughout the State. 454. =Ash-throated flycatcher.= MYIARCHUS CINERASCENS. Rare summer resident; western species, coming east to western edge of plains. 455a. =Olivaceous flycatcher.= MYIARCHUS LAWRENCEI OLIVASCENS. Summer visitor, rare, if not accidental; a southern species; taken once in Colorado. 456. =Phoebe.= SAYORNIS PHOEBE. Rare summer visitor; comes west to eastern border of the State. 457. =Say's phoebe.= SAYORNIS SAYA. Common summer resident; most common on the plains; occurs on both sides of the range; the author found it a little above Malta, at Glenwood, and in South Park. 459. =Olive-sided flycatcher.= CONTOPUS BOREALIS. Common summer resident; breeds only in the mountains, from 7,000 to 12,000 feet. 462. =Western wood pewee.= CONTOPUS RICHARDSONII. Common summer resident; most common in breeding season from 7,000 to 11,000 feet. 464. =Western flycatcher.= EMPIDONAX DIFFICILIS. Common summer resident; breeds from plains to 10,000 feet, but most common in upper part of its range. 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.