54 RIDGWAY ORNITHOLOGICAL CLUB. 



cholla will usually suffice, as the nest is large and conspicuous. At 

 times, if the cholla is more bushy than usual, a closer inspection is 

 necessary. The parents sit closely, so that one can approach within 

 a few yards before they slip off — which they usually do on the op- 

 posite side — and, dropping to the ground, run away, taking care to 

 keep behind brush, etc., so that one may not see them at all. When 

 they fly it is usually only high enough to clear the brush. In run- 

 ning they carry the long tail elevated more or less above the hori- 

 zontal. 



On April nth a ? was seen to fly from a nest in a cholla. This 

 nest was about two feet from the ground and contained four eggs 

 in which incubation was advanced. 



On the i6th I again visited the nest from which I took the 

 young $ on the loth. One of the remaining three was out of the 

 nest, though only a few yards distant. The others would probably 

 have left to-morrow. When I first saw this nest, March 30th, the 

 young were about three days old, which shows that the young of 

 this species must leave the nest when about t\venty days old. 



On the 17th I found a nest and two eggs. It was left for the 

 full set, which consisted of only three in this instance. The nest 

 was placed in a cholla about three feet from the ground. 



The bird is not very rare in suitable places. I found them also 

 in San Gorgonio Pass on May 27th, and in a scattering growth of 

 yuccas on the Mojave Desert near the river of the same name. 

 None were noted at Yuma. 



117. Harporhynchus crissalis (Henry). [Crissal 

 Thrasher). Noted at Yuma only. They are not common, only a 

 few being seen. They are also very wild and hard to approach. 



118. Campylorhynchus bruxneicapillus (Lafr.). [Cactus 

 Wren). Common, breeding in all the localities visited excepting 



Bear Valley, where none were seen. All the nests found were 

 placed in tuni or cholla cacti. 



119. Salpinctks obsoletus (Say). [Rock Wren). Only 

 three wei'e noted: Cohuilla Valley, Yuma, and Bear Valley. It 

 is a common Winter resident in some localities. 



1 30. Catherpes mexicanus conspersus Ridgw. {Ca?ion 

 Wren). I regard this as a rare bird with us. The only one noted 

 this Spring was heard in the cliffs in Cohuilla Valley April 14th, I 

 was, however, unable to get a glimpse of it. 



It only sang at tantalizingly long intervals, changing its posi- 

 tion after everv cessation. 



