UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 21, No. 4, pp. 75-224, plates 4-7, 30 figures in text September 1 1, 1920 



REVISION OF THE AVIAN GENUS PASSEREELA, 



WITH SPECIAL REFERENCE TO THE 



DISTRIBUTION AND MIGRATION OF 



THE RACES IN CALIFORNIA 



BY ; — — .-^ 



H. S. SWARTH /^^' 



/ SEP 24 1920 



(Contribution from the Museum of Vertebrate Zoology of the University of Cahforni^ 



CONTENTS 



PAGE 



Introduction '" 



Material and methods of treatment 80 



History °^ 



Variation in Passerella iliaca • 87 



Distribution and migration 101 



Passerella iliaca iliaca H^ 



Passerella iliaca altivagans H" 



Passerella iliaca unalaschcensis 127 



Passerella iliaca insularis 132 



Passerella iliaca sinuosa 135 



Passerella iliaca annectens 140 



Passerella iliaca townsendi 144 



Passerella iliaca fuliginosa 149 



Passerella iliaca schistacea 152 



Passerella iliaca fulva 158 



Passerella iliaca megarhynchus 161 



Passerella iliaca brevicauda : 1"5 



Passerella iliaca canescens 169 



Passerella iliaca monoensis I'O 



Passerella iliaca mariposae 1'3 



Passerella iliaca stephensi 1'" 



Table of measurements ■ 182 



List of specimens examined 184 



Literature cited 212 



