lUI.Lin'IX No :xi. 



V.i 



while beating our way through the willow tangles of the east 

 bottom. One of the three fresh eggs was a Cowbird's. 



Rio Grande River, Thornton, N. M., June •')() to July 1 



Spotted Saiulpi]K-r. 



Kilkleer. 



Mourning Dove. 



Desert vSparrow Hawk. 



Burrowing Owl 



California Cuckoo. 



Broad-tailed Hutnniinghird. 



Arkansas Kingbird. 



Cassin's Kingbird. 



Western Wood Pewee. 



American Crow. 



Desert Horned Lark. 



Cowbird. 



Red-win<red Blackbird. 



Western Meadowlark. 

 Arkan.sas Goldfinch. 

 Hou.se Finch. 

 Cassin's Purple Finch. 

 Western Lark Sparrow. 

 Black-headed Grosbeak. 

 Western Blue Grosbeak 

 Barn Swallow. 

 Bank Swallow. 

 Yellow \\'arbler. 

 Long-tailed Chat. 

 Western Yellow-throat. 

 Mockingbird 

 Catbird. 



July i^nd, on board train. 



The only notable species seen during the ride from Thornton to 

 Flagstaflf were .\merican Raven and Roadrunner. 



A brief comparison of our list of San Franci.sco Mountain 

 birds with that of Dr. Merriam in North American Fauna, 

 No. 8, pages S7 101, is interesting. It should be' borne in 

 mind that Dr. Merriam' s work covered all of two months 

 while we were covering the distance from Flagstaff to the 

 summit of the highest peak in one whole day between two half 

 days. W'e were therefore concerned with resident birds and 

 breeders only. Our bird records were incidental to the moun- 

 tain scaling. Of the l')l species recorded by Dr. Merriam, a 

 little over ()<) were possible for us in this limited time. We re- 

 corded but oo of this number, but found two which do not 

 appear on Dr. Merriam" s list, Cowbird and Cassin's Purple 

 Finch. About these two there can be no shade of doubt. 

 Among the -{"i unrecorded possibilities there are less than ten 

 probabilities, so that we feel that the cream of the fauna was 

 gathered even in this incidental way. In such vast reaches 

 one needs far more time for study than we could possibly 

 afford. 



