Contents
The Birds of Molly Island, Yellowstone National Park
M. P. Skinner
A New Subspecies of Geothlypsis Beldingi
Harry C. Oberholser
Editorial Notes and News
J. Grinnell
Minutes of Cooper Club Meetings
Amelia S. Allen and L. E. Wyman
Index to Volume Xix
J. Grinnell
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
From Field and Study
The Goshawk in Southern California and Arizona
A. E. Colburn
The Goshawk Invasion Again
L. E. Wyman
Sierra Junco Breeding at Berkeley
Margaret W. Wythe
Some Field Notes for 1917
W. A. Squires
Two New Records for the State of Washington
J. H. Bowles