98 THE NATURALIST'S GUIDE. 



Wren. Common in the large fresh-water marshes during- 

 summer, where it breeds during the latter part of May. 



'22. CistOthorus palustris, CAB. - -Short-billed Marsh 

 Wren. Rather more common than the preceding. Fre- 

 quents the same localities. It is exceedingly difficult to 

 procure, on account of its lying very closely when hunted- 



MOTACILLID^E, THE WAGTAILS. 



23. Anthus Ludovicianus, LIGHT. --Tit-lark. Abun- 

 dant spring and autumn migrant along the coast. I am 

 informed by my friend, Mr. William Brewster, that it is 

 also abundant on the Fresh Pond marshes, near Cam- 

 bridge. It has the habit of jerking its tail like the Water 

 Thrushes. 



SYLVICOLID^E, THE WOOD- WARBLERS. 



24. Mniotilta varia, VIEILL. - - Black and White Creep- 

 er. Common summer resident. Abundant during the mi- 

 grations. Found in the woods everywhere. Arrives the 

 last week in April ; leaves the latter part of September. 

 Breeds. 



25. Parula Americana, BON. Blue Yellorv-backed 

 Warbler. Summer resident. This beautiful little Warbler 

 seems to be a somewhat irregular visitor while migrating. 

 During the spring of 18G7 it was very abundant; in 1868 

 I could find but two or three, although I searched dili- 

 gently for it; w r hile the season of 18G9 brought it in 

 particular abundance. Found generally in oak woods. 

 Arrives about the second week in May ; leaves in the mid- 

 dle of September. Mr. William Brewster informs me that 

 it breeds quite commonly in certain localities. 



26. Geothlypis trichas, CAB. Maryland Yellow- 



