wetmore: northern Arizona birds. 385 



simple twittering song with either three, four, or five notes, 

 like tsee, tsee, tsee, tsee. This song was given either from an 

 exposed perch or from the shelter of a pinon, in which it was 

 difficult to find the bird. The last Junco caniceps was taken 

 March 11, and I do not think many remained to breed. Junco 

 dorsalis was found commonly after this, the last one being 

 taken March 21, but what I took to be this species was seen till 

 the end of my stay. They were then distributed all through 

 the deadfalls on the mountain, and were apparently preparing 

 to breed. 



24. Junco oregonus shufeldti (Coale). — Shufeldt Junco. 

 Six adult males, February 26, March 2, two; March 4, 11 and 

 13. These j uncos had the habits of the other species, but could 

 be distinguished in the field by their black heads. There were 

 a few present on my arrival, but none were taken after March 

 13, and I think they were about all gone then. 



25. Pipilo maculatus megalonyx (Baird). — Spurred Tow- 

 HEE. One adult male, March 8; one adult female, March 13. 

 First seen March 8, but was common by the middle of March. 

 They frequented the brush-covered hillsides, mounting to the 

 tops of the branches to sing, but when I appeared dropped to 

 the ground and ran off into cover. Frequently I hunted for 

 more than half an hour without getting more than a glimpse 

 of one. 



26. Tachycineta thassalina lepida (Meams) . — Northern 

 Violet-green Swallow. Five adult females, March 29. On 

 this day I found a flock of about twenty of these birds in a 

 wash between two hills northeast. They were feeding on the 

 wing, calling chu, chu in a peculiar tone. When tired they 

 rested on the dead limbs of the trees, but were soon flying 

 around again. All those taken were females, but they were 

 playing in the air as though mating. 



27. Lanius ludovicianus excuhitomdes (Swains). — White- 

 RUMPED Shrike. One adult male taken, March 25. This bird 

 was shot along the railroad-track, and was the only one seen. 

 It is a well-marked specimen of L. ludovicianus excubitorides, 

 and resembles others from Kansas and Wyoming. 



28. Oroscoptes montanus (Towns.) — Sage Thrasher. One 

 adult male, March 31. One found skulking in the bushes near 

 the foot of the mountain-slope. 



29. Salpinctes obsoletus (Say) . — Rock Wren. Four adult 



