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CONTENTS The Yellow-billed Loon: A Problem in Migration ........... Wells W. 17ooke 213 Notes on the Nesting of the White-tailed Ptarmigan in Colorado (with five photos) ............................................ W. C. Brac?bury 214 Characteristic Birds of the Dakota Prairies. II. Along the Lake Borders ............................................ Florence Merria?r? Bailey 222 A Convenient Collecting Gun (with one photo) ......... Loye Holrae8 Miller 226 Further Remarks upon the Kern Red-wing ............. Joseph Mailliarc? 228 Nesting of the White-tailed Kite at Sespe, Ventura County, California (with two photos) ..................................... Lawrence Peyton 230 Additional Observations on the Birds of the Lower Colorado Valley in Cali- fornia ....................... A. Brazier Howell and A. van Rossera 232 FROM FIELD AND STUDY: Arizona Hooded Oriole in the Fresno District ...... Winifrec! IV. Wear 234 Nesting of Wild Ducks near San Francisco ............ W. A. ?quires 234 Western Bluebird Nesting in Los Angeles ......... W. Lee CIm?bers 235 The Hermit Warbler in Berkeley .................. Amelia ?. Alien 235 Scaup Ducks Breeding in Golden Gate Park, San Francisco ........ .............................................. Joseph Mailliarc! 235 EDITORIAL NOTES AND NEVq?S ......................................... 236 PUBLICATIONS REVIEWED ............................................ 236 MINUTES OF COOPER CLUB MEETINGS ................................ 239 INDEX TO VOLUME XII ............................................... 241 Entered as second-class nmtter l?ebruary, 1908, at the post-office st Los Angeles (}tollywood Station), California, under Act of Congress of March 3, 1879. Issued from the Office of TaB CONDOR, First National Bank Building, Hollywood, California SEPARATES Separates of articles in TEE CONDOR will be furnished by THE NACE PRINTING COMPANY, 171 W. Santa Clara St., San Jose, Calif., at the fol- lowing uniform rates. All orders for separates must accompany manu- script, and be written plainly at the head of the article. No separates can be furnished gratis. No. of Copies 2 pages 4 pages 8 pages 12 pages 16 pages Cover and Title z$ $ .75 $1.z5 $2.25 $3.50 $4.50 .75 50 1.00 1.50 2.50 4.00 5.00 1.00 75 1.15 1.75 2.75 4.50 5.50 1.25 100 1.25 Z.00 3.00 5.00 6.00 1.50