102 



resident in towns. Arrives April lOtli to 30tli ; departs tlie first of 

 September. 



Genns Petrochelidon Cuba a. 



65. P. lunifrons Bd. Ci.iff Swallow. An abundant migrant; 

 May 1st to lOtli, and the first of September. Also a common summer 

 resident. 



Genus Hirundo Linn. 



66. H. horreorum Bart. Baiin Swallow. A very common 

 summer resident; arrives April 15tli to May 10th; departs the first of 

 September. 



67. H. taicolor Vieill. Wiiitk-brllikd Swallow. Common 

 resident. Arrives in large numbers March 20th. The first of May 

 only residents remain. Departs in September. This species still 

 keeps its primitive habit of nesting in deserted woodpecker's holes, 

 hollow stumps and similar places, generally close to some stream or 

 body of water. Several times during the spring I have seen these 

 birds occupy martin houses for several weelvs until the owners re- 

 turned, when, after a desperate battle they would leave. Have never 

 observed them about the town during tlie breeding season. 



Genus Stelgidopteryx Bd. 



68. S. serripennis Baird. Eough-wingkd Swallow. A rare 

 summer visitant, perhaps breeds. 



Genus Cotyle Boie. 



69. C riparia Boie. Bank Swallow. Abundant summer resi- 

 dent. Arrives May 7lh ; departs September first. Nests in the sand- 

 hills and clay bhifls along the Lake siiorc. 



. Family VIREONID^. 

 Genus Vireo Vieill. 



70 V. olivaceus Bonap. Ri:i)-i:vkd Viueo. Common summer 

 resident. Arrives May 15th and departs the last of September and 

 first of October. I have found tlic irides, indifi'ei'entiy, red or brown, 

 in spring specimens of this species. 



71. V. philadelphieus Cass. riiiLADF.Lriii.v Vikko. A common 

 migrant; May 15th to 25th, and September 5th to 25tli. While pass- 

 ing in the spring these birds frequent eitlier willow tliickcts or high 

 woods. Tliey were so numerous near Waukegan about the 20th of 

 May, 1870, that a dozen specimens might have been obtained in an 

 hour. The first of July, 1874, I found two pairs of these birds in a 



