30 The Wilson Bulletin.— No. 42. 



INFORMATION WANTED. 



We are much pleased to announce that beginning at 

 once there will be two lines of special investigation pursued 

 until a finished report can be prepared for each. No doubt 

 other lines of special work will be developed during the year, 

 which will be announced when the methods of investitiga- 

 tion can be worked out. 



Mr. Alex. W. Blain, Jr., desires information of any sort 

 concerning the Great Blue Heron {Ardea Jierodias). Mr. 

 Blaine desires a complete set of notes from any and all who 

 have had any experience with this heron, whether as a mi- 

 grating bird, as a winter bird, or as a breeding bird. His 

 object is to prepare a complete life history, to be published 

 as a special Bulletin, when it shall be ready. For further 

 information address Alex. W. Blain, Jr., 131 Elmwood 

 Ave., Detroit, Mich. 



The editor has long had in mind the investigation of the 

 Mourning Dove [Zenaidiira inacronrd). He has already 

 made some progress and desires the cooperation of every 

 member and reader in the preparation of a life history of 

 this well known bird. He hopes to determine the exact 

 bounds of its range at all seasons of the year, its method of 

 nesting throughout the whole country where it nests, its 

 periods of song, its methods of molting, the care of its 

 young, the maximum number of eggs ever deposited, its 

 standing as a destroyer of weeds and grains, in fact, every- 

 thing possible to learn about it. Any notes concerning the 

 dove will be welcomed. 



The success of any cooperative study such as these pro- 

 posed, largely depends upon the heartiness with which every 

 one enters upon his part of the work. Feel yourself called 

 upon to help in any way possible. Your contribution of 

 notes will form an important part of the record of these life 

 histories. Begin now to gather new material for this con- 

 tribution, finding where your information is week or lacking. 

 It will do you good to fill out the gaps in your own records. 



