1913] Grin n< ll-Sirarfli : Birds and Mammals of San Jacinto 387 



Table (2) showing relative numbers of boreal birds represented on 

 the different mountain masses of southern California. Note the correla- 

 tion of numbers of types with size of the detached urea of Boreal (and 

 Transition) zone in each case (see profile, pi. 7). 



Dendragapus o. sierrae 

 Otus f. flammeolus 

 Xenopicus albolarvatus, subsp. 

 Sphyrapicus v. daggetti 

 Sphyrapicus thyroideus 

 Chordeiles v. hesperis 

 Stellula calliope 

 Nuttallornis borealis 

 Empidonax wrighti 

 Cyanocitta s. frontalis 

 Nucifraga columbiana 

 ( larpodacus cassini 

 Loxia e. bendirei 

 Leucosticte t. dawsoni 

 Spinus p. pinus 

 7onotrichia 1. leucophrvs 

 Junco o. thurberi 

 Melospiza 1. lincolni 

 Passerella i. stephensi 

 Oreospiza chlorura 

 Dendroica a. auduboni 

 Certhia f. zelotes 

 Sitta canadensis 

 Sitta pygmaea, subsp. 

 Penthestes gambeli, subsp. 

 Regulus s. olivaceus 

 Regulus c. cineraceus 

 Myadestes townsendi 

 Ilylocichla g. sequoiensis 

 Planesticus m. propinquus 

 Sialia currucoides 



Total number of species 31 



