ACKNOWLEDGMENTS 



During the ])reparation of the following paper I have often called upon fel- 

 low members of the Cooper Ornithological Club for aid, which, though some- 

 times incurring trouble on their part, has at all times been most cheerfully and 

 promptly rendered. For furnishing me with important unpublished notes in re- 

 gard to the island birds, I am very greatly indebted to the following gentlemen : 

 W. L. Dawson, D. R. Dickey, 0. W. Howard, L. M. Huey, C. C. Lamb, J. Maill- 

 iard, C. W. Richmond and G. Willett ; and for supplying much needed informa- 

 tion of various kinds, to C. B. Linton, H. C. Oberholser, A. van Rossem, and H. 

 S. Swarth, the latter having been of great help to me in many ways. I am under 

 obligation to F. S. Daggett for allowing me access to the collections in the ^lu- 

 seum of History, Science and Art, of Los Angeles; to J. P]. Thayer for the loan 

 of specimens and for notes; to the Bureau of Biological Survey, through E. W. 

 Nelson, for the loan of specimens; to the ^luseum of Vertebrate Zoology of the 

 University of California for access to its collections, and for the loan of speci- 

 mens; and to W. L. Chambers for the unrestricted use of his splendid library. 

 Finally, to Dr. Joseph Grinnell I am under a lasting debt of gratitude for encour- 

 agement, advice on all sorts of subjects, and the use of his unpublished notes. 

 The accompanying map was drawn l)y C. L. Moody, and the technical descrip- 

 tions of the islands were taken in part from the Pacific Coast Pilots of the U. S. 

 Coast and Geodetic Survey. 



A. Brazier Howell. 

 Covin a, California, 



January 10, 1917. 



