THE CONDOR 
A Magazine of Western Ornithology 
Published Bi-Monthly by the Cooper Ornithological Club 
Entered as second-class matter February 12, 1908, at the post-office at’ Los Angeles (Hollywood 
Station), California, under Act of Congress of March 3, 1879. ' 
Issued from the Office of THE Conpor, care E. D. Dietz, First National Bank, Hollywood, California 
SUBSCRIPTION RATES 
Two Dollars per Year in the United States, payable in advance. 
Forty Cents the single copy. 
Two Dollars and Twenty-five Cents per Year in all other countries in the International Postal Union. 
COOPER CLUB DUES 
Two Dollars. per’ year for members residing in the United States. 
Two Dollars) and Twenty-five Cents in all other countries. 
Manuscripts for publication, and Bocks and Papers for Review, should be sent to the Editor, J. Grinnell, 
Museum of Vertebrate Zoology, University of California, Berkeley, California. 
Claims for missing or imperfect numbers should be made of the Business Manager, as addressed below, 
within thirty days of date of issue. 
Cooper Club Dues, Subscriptions to The Condor, and Exchanges, should be sent to the Business 
Manager. ) 
For the Purchase of Back Volumes of The Condor or of the Pacific Coast Avifauna series, apply to the - 
Business Manager. 
W. LEE CHAMBERS, Business Manager, Eagle Rock, Los Angeles County, California. 
Issued January 28, 1919 ° 
CONTENTS 
A Return to the Dakota Lake Region (continued).Florence Merriam Bailey 3 
The Solitaires of Shasta (with five photos)............:...William Leon Dawson 12 
Nesting of the Short- eared Owl in Western Washington (with four photos) 
ALS as KR MOL RS HRT AN MNCL MPM Ub E eT Ty se AU 9 Re lal H. A. Kitchin 21 
Problem: Do Birds Mate for Life? (with one photo)................ J. Hugene Law 26 
Evidence OAL Many Birds Remain Mated for a Number of Years.........--.-------- 
A NUL IL Oita LUT es AULA NC i SUE ahs ie Sy ARR Ht den DIREC N. K. Carpenter 28 
Parasitism of Nesting Birds. by Fly ‘Luarvaiesn0 0 OO Pl 30 
FROM FIELD AND STUDY: 
The Costa Collection of ‘Birds.0).0. 242 J. H. Fleming . 39 
The Wilson Phalarope in the San Diegan Region................ Loye Miller 39 
Nesting of the Western Willet in California............ J. Van Denburgh 39 
Nighthawk Observed in San Francisco..............2....--- Joseph Mailliard 40 
Notes on Red-headed Woodpecker and Jack Snipe in New Mexico... 
cesta ULM Vi MRA OS Rl LAO ANY, NE ee Aldo Leopold 40 
Nesting of the Band-tailed Pigeon in San Diego County, California.... / 
EAS MNPOM ON AUG ANE IRC AMA WI RUN oe DM MMR NPE Ree ah iB TEM A RRL AC C. S. Sharp 40 
Recent Additions to the California State List of Birds.......J7. Grinnell 41 
A Northern Record of Mimus polyglottos leucopterus................-----.---- 
fe Tt 2G aE A a ly Na William Leon Dawson 42 
Sapsuckers and Hummingbirds.............0..-20-2.2---s---.--200-- H. H. Mitchell 42 
Western Golden-crowned Kinglet in Los Angeles................ Loye Miller 42 
EDITORIAL NOTES AND NEWS (with one photo) .........-...--.2.---------ceeeceeeeeecees 43 
PUBLICATIONS REVIBN WED) (000.7% eg leva Se Sau ane maa 44 
MINUTES OF COOPER CLUB MEBTINGS 00 46. 
