REPORT UPON ORNITHOLOGICAL SPECIMENS. 



85 



visited our camp in considerable numbers, contending with the Clarke's 

 Crow for the fragments of food thrown away. They were, however, 

 always on the alert, and on the first show of hostility were off to the 

 high pines. 



63. Perisoreus canadensis (L.), var. capitalis, Baird. Rocky Mountain 



Gray Jay. 



Common in the pine-region near Garland, and also in South Park, 

 where specimens were obtained by Dr. Rothrock. I found old birds 

 feeding their fully fledged young the middle of June. These quite 

 likely were second broods. The habits of this bird seem to correspond 

 closely with those of its eastern ally, canadensis. It is very tame, and 

 seems to have no feeling regarding man other than curiosity. It has a 

 great variety of notes, and one which I often heard is a perfect imita- 

 tion of the Red-tailed Hawk. 



(the Tyrant Flycatchers). 



64. Sayornis sayus (Bon.) Say's Pewee. 



Not uncommon in this region. Its manner of nesting, habits, and the 

 general character of the notes much resemble those of the eastern 

 pewee (S.fu8CU8). A nest found June 27 beneath the evts of one of the 

 outbuildings of the post was composed of bits of twine, shreds of cloth, 

 and other like substances, cemented together with mud. The cavity 

 was quite shallow, and lined thickly with horse-hair and sheep's wool. 

 Eggs, four in number, pale yellowish-white, without spots. 



65. Contopus borealu (Sw.) Olive-sided Flycatcher. 



A common and highly characteristic bird of the pine-region, ranging 

 from about 7,000 feet up to timber line. Its favorite perching places 

 are the tops of the high pine-stubs. From these stations it makes fre- 

 quent sallies after passing insects, and seems rarely to miss its prey. 

 When thus engaged, the clicking noise of its bill may be heard quite a 

 distance off. About the 1st of June they had all mated, and each pair 

 maintained a most jealous watch over the neighborhood chosen as its 



