PLATE II. 



Houses Nos. 1, 2 and 3 of the Jacobs Martin 



Colony, from Photos by the Author 



During July, 1900. 



The two upper pictures were taken while the 

 birds were collecting on house No. 1. The cen- 

 tral picture is from a snapshot as the birds took 

 flight from the house, and the lower views were 

 taken while a number of birds were resting on 

 houses 2 and 3. 



This plate was originally used in "The Story 

 of a Martin Colony"; and in the January- 

 February, 1903, issue of "Bird Lore", Mr. 

 Chapman used it in his review of this booklet. 

 It was also used to illustrate the Author's two 

 articles written for the Pennsylvania State Zoo- 

 logical Bulletin. 



