BIRDS OF COLORADO. 163 
Page 87. Add. 436. Stellula calliope. Calliope Hum- 
mingbird. 
Summer visitant; rare or accidental. An adult male was 
found dead July 25, 1897, Cheyenne Canon, near Colorado 
Springs. The skin is now in the collection of Mr. C. E. Aiken. 
Page 87. 447. Tyrannus verticalis. Arkansas Kingbird. 
448. Tyrannus vociferans. Cassin’s Kingbird. 
During a collecting trip on the Divide south of Denver, in 
1897, Mr. Aiken took careful notes of the relative abundance 
of these two species in the breeding season, at Ramah, altitude 
8,000 feet. In quite a small area he found about a hundred and 
fifty pairs of the Arkansas Kingbird and only about twenty-five 
pairs of Cassin’s. 
Page 89. 474a. Otocoris alpestris leucolaema. Pallid 
Horned Lark. 
The determinations of Mr. Ridgway, mentioned below, 
make it probable that most of the winter birds of northern Col- 
orado should be referred to are 7 iicola instead of leucolcsma. 
Page 89. 474c. Otocoris alpestris arenicola. Desert 
Horned Lark. 
A series of ten Horned Larks from Colorado were sent by 
Mr. Aiken to Washington. They embraced winter and sum- 
mer specimens selected from a large number to show all phases 
of plumage, some even having the throat white without trace 
of yellow. They are all referred by Mr. Ridgway to arenicola. 
Page 91. 487. Corvus cryptoleucus. White-necked Raven. 
A nest with eggs was found by Mr. Aiken in May, 1878, 
on Horse Creek, seventy-five miles east of Colorado Springs. 
Page 92. 491. Nucifraga Columbiana. Clarke’s Nut- 
cracker. 
The first sentence should read: “The first eggs known to 
science from Colorado, etc.” Maj. Bendire had previously 
taken the nest and eggs in Oregon. 
Page 93. 494. Dolichonyx oryzivorus. Bobolink. 
Several more records can be added to the five previously 
known. Mr. H. G. Smith saw a male in a garden in the city 
of Denver in June several years ago. Mr. C. E. Aiken took 
one in fall plumage at Colorado Springs September 5, 1897. 
There is a mounted bird at Cheyenne taken by Mr. 'F. Bond, 
who writes: “The Bobolink is not uncommon with us. I 
have taken them yearly for some years; sometimes within the 
city limits.” 
