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CONTF_.NT$ The Ospreys of the Yellowstone (with one photo) .................... M.P. Skinner 117 Habits of the Magpie in Southeastern Washington (with two photos) ............ ............................................................................................................ Lee R. Dice 121 The Winter Migration of 1916-17 in the Northwest (with two photos) ............ ................................................................................................. .J. Hooper Bowles 125 Observations on Some Fresno County Birds ................................... _H. S. Swarth 129 Some Birds of Central Oregon (with map and one photo) .......... Alex Walker 131 FROM FIELD AND STUDY The Bohemian Waxwing in Colorado ............................ Junius Henderson 141 Another Instance o'f Lead Poisoning in Ducks..Stanton Warburton. Jr. 141 Fork-tailed Petrel and Baird Sandpiper in Southern California ............ .............................................................................................. L. E. Wyman 141 Nesting of the Harris Hawk in Southeastern California ........ Leo Wiley 142 Notes from the Fresno District ...................................... Winilred N. Wear 142 Another Record of the European Widgeon from the State of Wash- ington .............................................................. Stanton Warburton, Jr. 142 Notes on the Black-crowned Night Heron near Denver .......................... ........................................................................................ W. C. Bradbury 142 Some April Nesting Notes from the Vicinity of Buena Vista Lake, Kern County, California ...................................................... G. Willett 143 Cases of Early Nesting in the State of Washington .................................. .......................................................................... Stanton Warburton. Jr. 143 EDITORIAL NOTES AND NEWS ....................... 144 PUBLICATIONS REVIE?VED ................................................................................... 144 MINUTES OF COOPER CLUB MEETINGS ............................................................ 147 ?ntered as second-class matter February. 1908. at the post-office at Los AngeleB (Hollywood Station). California. under Act of Congress of March 3. 1879. Issued from the Office of TH? CONoOS, First National Bank Building, Hollywood. Califoruia MEETINGS OF THE COOPER ORNITHOLOGI,AL CLUB SOUTHERN DIVISlO?: At the Museum of History, Science, and Art, Exposition Park, Los Angeles. Time of meeting, 8 P. x% the last Thurs- day of every month; or on the Tuesday evening preceding, when the last Thursday falls on a holiday. Take south-bound car from town; on Spring Street, the car marked "University", on Hill Street the car marked "Ver- mont and Georgia". Get off at Vermont AvEnue and Thirty-ninth Street. Walk t?vo blocks east to Exposition Park. The Museum is the building with the large dome. NORTHERN DMSION: At the Museum of Vertebrate Zoology, Uni- versity of California, Berkeley. Time of meeting, 8 r. x?., the third Thursday of every month. Take any train or car to University Campus. The Museum of Vertebrate Zoology is a large corrugated iron building situated on the south side of the campus immediately north of the foot- ball bleachers.