114 TEIPPE, 



11. Syrnium nebulosum. Not abundant. 



12. Bubo Virginianus. Not common. 



13. Caprimulgus vociferus. Very abundant. It arrives in the first 

 week of May, and was seen as late as the 21st of September. 



14. Chordeiles Virginianus. Abundant. Arrives about the middle of 

 May, and leaves towards the close of August. 



15. Chcetura pelasgia. Not common. 



16. Hirundo purpurea. Uncommon. 



17. H. bicolor. Seen in great numbers in May, near the Leaf River, 

 but not observed elsewhere. 



18. H. riparia. Very common. 



19. Muscicapa tyrannus. Very abundant. Arrives in the middle 

 of May. 



20. Tyrannula minima? Abundant. Possibly an allied species, 

 though I think not. I saw also another species of Tyrannula which 

 I took to be 



21. T. flaviventris, though I might have been wrong. It was not 

 very common. 



22. Muscicapa virens. Common, especially near the Mississippi. 



23. M. ruticilla. Seen once or twice in May. 



24. Sylvicola coronata. Abundant. It appears towards the close of 

 April, remaining for two or three weeks, then passing north. It re- 

 appears in the latter part of August, on its southward migration. 



25. S. Pennsylvania. Rather rare; breeds. 



26. S. pinus? Not common; breeds. 



27. 8. cestiva. Rare. 



28. S. petechia. Abundant in the early part of May ; goes further 

 north to breed. 



29. S. virens. Common; breeds. 



30. S. Americana. Rare. Seen only towards the latter part of 

 August. 



31. S. Canadensis. Not common; breeds. 



32. Trichas Marilandica. Abundant. Appears in the middle of May. 



33. T. Philadelphia. Abundant; breeds. The Mourning Warbler 

 haunts the edges of tamarack swamps, and the damp thickets that 

 adjoin them. I made frequent search for its nest, but was not fortu- 

 nate enough to find it, though I repeatedly saw the old birds feeding 

 the young in the latter part of June and early in July. They are similar 

 in their habits to the Maryland Yellow-throat, but are not so exclu- 

 sively devoted to thickets and underbrush, frequently ascending to 

 the tops of the tamaracks, for which they show a great predilection. 

 The Mourning Warbler has a very agreeable song, very similar to 

 that of the Water Thrush, Seiurus Novceboracensis. 



34. Mniotilla varia. Common. 



