53 



Genus Geothlypis Cab. 



18. G-. trichas Cab. MARYLAND YELLOW-THROAT. Not common. 

 A few were seen in the weeds along the railroad track near Cairo. 



Genus Setophaga Sw. 



19. S. ruticilla Sw. BED-START. Abundant in low woods near 

 Mound City and in the Missouri bottoms. 



Family HIRUNDINIDJE. 

 Genus Progne Boie. 



20. P. subis Bd. PURPLE MARTIN. During the first half of my 

 visit but few martins were to be seen, but the last of August they 

 appeared in immense numbers about the towns and over the rivers. 



Genus Petrochelidon Bd. 



21. P. lunifrons Bd. CLIFF SWALLOW. Abundant with the pre- 

 ceding. 



Genus Hirundo Linn. 



22. H. horreorum Barton. BARN SWALLOW. This and the two 

 preceding species, in company with the chimney swifts, towards the 

 last of August would appear over the rivers in immense numbers 

 about an hour before sunset and until dark would circle and dart back 

 and forth over the smooth surface of the water in pursuit of their 

 prey. 



Genus Stelgidopteryx Bd. 



23. S. serripennis Bd. ROUGH-WINGED SWALLOW. Bather com- 

 mon along the river banks, usually found perching in groups at mid- 

 day on dead branches overhanging the river. 



Genus Cotyle Boie. 



24. C. riparia Boie. BANK SWALLOW. Very abundant. 



Family VIREONIDJE. 

 Genus Vireo Vieill. 



25. V. olivaceus Vieill. BED-EYED VIREO. Abundant through- 

 out the bottoms. 



26. V. flavifrons Vieill. YELLOW-THROATED VIREO. Bather com- 

 mon near Mound City and in the Kentucky and Missouri bottoms. 



