98 THE NATURALIST'S GUIDE. 



Wren. Common in the large fresli-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. 



MOTACILLIDiE, — The Wagtails. 



23. Anthus Ludovicianus, Light.— yiWar^. 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^,— The Wood-Waeblebs. 



24. Mniotilta varia, Vieill. — Blach 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. Farula Americana, Bon. — Blue Yellow-hacked 

 Warbler. Summer resident. This beautiful little Warbler 

 seems to be a somewhat irregular visitor while migrating. 

 During the spring of 1867 it was very abundant ; in 1868 

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

 gently for it; while the season of 1869 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- 



