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‘THE CONDOR 
A Magazine of Western Ornithology | 
Published Bi-Monthly by the Cooper Ornithological Club — : 
Ad | 
Entered as second-class matter November 29, 1919, at the post-office at Berkeley, California, under ae 
y of Congress of March 3, 1879. Acceptance for mailing at special rate of postage provided ig poe ee ¥ 
in Section 1103, Act of October 3,1917. Authorized January 5, 1921. ; 
Issued from the Office of THE ConpoR, Museum of Vertebrate Zoology, Berkeley, California us & 
f ' 
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Museum of Vertebrate Zoology, University of California, Berkeley, California. \. ON = 
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: W. LEE CHAMBERS, Business Manager, Eagle Rock, Los Angeles Canty California. _ Wee's , 
é ST ee oR \ ra r ae 
A w4 Po est \ | , 2 
0 Pepe Rok 1 Issued July 26, 1921 gown ‘ he ees BME 
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Dare ae CONTENTS... 
The Bi orace of Acorns by the California Woodpecker (with one photo)...... og ees Due ok My 4 
os Le Wale AMPA BUTS tel DEC RUh EMM OA DENG Nae. EE 3 Co DOU aN FU oo REN LU Henry W. Henshaw 109 ~ eh ts 
The ‘Storage of Algaae by the California Woodpecker (with one photo).... y Siete, 
Pg ce ote tea ND EG Ne I SG a ee ee ee ee a Claude Gignour 118 MMe 
CGA The Flock Behavior of the Coast Bush-Tit (with map)......... Re OC) Miller: 428, me" 
¢ (Genera aud SPeCle Gg iii aes Coe Tie eae vi ee Del ite he Richard C. MeGregor 127 } ea ns, | 
) A Synopsis of California’s Fossil Bwease ss Vw ee feet al -Loye Miller 129 fo a 
FROM FIELD AND STUDY : FM oy , : er i 
On the Acorn-storing Habit of Certain Woodpeckers....Morton E.. ee 131. i eee 
The Brown-headed Nuthatch in Oklahoma................ Margaret M. Nice ~ 131 ta pki 
The Water. Ouzel in ‘Arizona... 701 Charles Ti, Vorhies” (4210.0. 
The Harlequin Duck in Montana................ EL ad a T. S. Pdimer< 1333.4 
Oklahoma ‘Field Notes 2.00000 a a a. Re Pemberton. 133 eee 
Relative Dimensions of Aeroplanes lend Hawks............ Joseph Dixon 184 — 
A Murre Tragedy (with one photo)......... hips SRL ATELTe Je Ut NE Na) R. H. Palmer 138 — 
Eastern California. Occurrences of the Golden- crowned Sparrow.. pad DL ee Riche: 
Nf eRe ah ee REC NEU ht BR SS MA, A. J. van Rossem 136 — 
Sparrow Hawk Captures Swallow... NONE a ete OAH a Me ..Paul Bonnot m 
_ Bubo virginianus occidentalis in California. ia. aba i H. S. Swarth 
Calliope Hummingbird at the Flower Show.........-...-----.-- C. W. Michael © 
Dipper Nesting in Santa Barbara County, California....Ralph H offmann 
. The California Brown Pelican as a Navigator..............C. H. ‘Woodward — 
: White-throated Sparrow in Orange eat pe ie John McB. Robertson — 
Philadelphia Vireo in Montana ............22.-....--- soeeeee Hdward A. Preble — 
Western Bluebird Nesting on a Sea-coast 00202. Ralph: I Hoffmann i 
EDITORIAL NOTES AND NEWS . en ae 
PUBLICATIONS REVIEWED == \ ih eS ER TT Ne 
Saunders on the Birds of Montana........--- SNe waneeeeee LAW 
Evermann and Clark on | the Fauna of a Ma kee..H. 
