440 Recent Literature. [j$ 



Another Purple Martin Roost in the City of Washington. By Harry 

 C. Oberholser. — A further account of the birds described in ' Bird-Lore ' 

 for 1917. 



The migration and plumage articles describe the Crows, with a colored 

 plate by Fuertes as a frontispiece. In this illustration the difference in 

 size of the bill of the Common Crow and Fish Crow is certainly exaggerated 

 and the latter species lacks the greenish lustre that is characteristic of it, 

 but it is very difficult to get the proper color values in attempting to re- 

 produce, these glossy plumages. 



The Condor. XXI, No. 2. March- April, 1919. 



Nesting of the Rocky Mountain Creeper. By W. C. Bradbury. With 

 excellent photographs of the nest and eggs. 



Albert Mills Ingersoll. — An Autobiography. 



Notes on the Breeding Habits of the Red Crossbill in the Okanagan 

 Valley, British Columbia. By J. A. Munroe. — Eggs were deposited in 

 March. 



Notes on the Nesting of two Little-known Species of Petrel. By George 

 Willett. — Pterodroma hypoleuca and Occanodroma tristrami on Laysan 

 Island. 



Bird Notes of a Stormy May in Colorado Springs. By Edward R. 

 Warren. 



Losses Suffered by Breeding Birds in Southern California. By H. A. 

 Edwards. 



Olive Thorne Miller. By Florence Merriam Bailey 



Bird Records from the Sacramento Valley, California. By Alexander 

 Wetmore. 



Notes from the Feather River Country and Sierra Valley, California. 

 By Joseph Mailliard. 



The Marital Tie in Birds. By Loye Holmes Miller. — This is a paper 

 that every student of bird life should read and seldom has the inability 

 of the average observer to properly interpret animal behavior been more 

 clearly explained. Prof. Miller is discussing Mr. F. C. Willard's paper in 

 the October ' Condor,' " Do Birds mate for Life? " which has already been 

 commented upon in these columns. He argues with much force that 

 there is no reason whatever to expect the marital relation in birds to last 

 more than one year while there are many reasons why it is improbable 

 that a bird remates with the same individual. He cleverly shows that the 

 duration of the marital tie is really for the period during which the young 

 are dependent upon parental care. In human beings this, with a normal 

 family, will extend over a period of forty years or more, while in birds it is 

 merely a few months. Why therefore try to impose upon birds human 

 conditions? 



The Summer Birds of Hazelton, British Columbia. By P. A. Taverner. 



The Ibis. XI, Series I, No. 2. April, 1919. 



Some Notes on Hieraaetus ayresi Gurney Sen. (Lophotriorchis lucani 



