168 



l'HE OOLOGIST 



were too many eggs but it certainly 

 appeared as though she knew her 

 eggs from the strangers. 



In regard to this matter of a bird 

 knowing its own eggs it would be of 

 great interest to me and without 

 doubt to Mr. Burgess to hear from 

 some of the bird men who havemurre 

 and other bird colonies near at hand 

 as to whether these birds can tell 

 their eggs or if they merely sit on 

 any one's' egg that by chance has not 

 been claimed. 



L. Brooks, Boston, Mass. 



AUTUMN WARBLER MIGRATION. 



Extracts From a Reprint of an Arti- 

 cle in the "Auk" for July, '07, by 

 Permission of the Author. 

 BY J. CLAIRE WOOD. 



(Continued from last number.) 

 Blue-Headed Vireo (Vireo solitar- 

 ius). — One adult male Oct. 9. First 

 seen in 1905 on Sept. 28 and common 

 that date and on Oct. 5. Last seen 

 Oct. 8 — one sepecimen. 



Black and White Warbler (Mniotil- 

 ta varia). — Less common than usual; 



