28 THE SEMI-ANNUAL. 



Mourning Wakbler, Geothlypis Philadelphia. 

 A not uncommon migrant. Found in deciduous woods. 



Maryl\nd Yellow Throat, Geothlypis trichas. 



Common Summer resident along swamps and ci-eeks and in 

 wet woods. It keeps well to the ground and nests in a bush on 

 the ground. 



Yellow-breasted Chat, Icteria virens. 



Somewhat rare Summer resident, frequenting the bushes along 

 water. The nest is placed rather low, usually in a little bush. 

 The bird is very shy and I have known it to break its eggs when 

 they had been handled. 



American Redstart ; Dwarf Oriole, Setophaga ruticilla. 



A not uncommon Summer resident in the deepest woods. 

 During migrations, the birds often appear in the trees along the 

 streets. 



NESTING OF THE WOOD AND WILSON'S THEUSHES- 



C. S. BUTTERS, HAVERHILL, MASS. 



Until this season have always had more or less trouble in find- 

 ing the nests and eggs of the Wood Thrush. I have this season, 

 however, made a special study of the nesting habits of the Wood 

 Thrush and Wilson's Thrush with very good success. 



The Wilson Thrush is quite a common breeder in this locality 

 and I have found something like fifteen sets this year, but have 

 taken but one, which I have in my cabinet. I do not think it 

 necessary to collect twenty-five to thirty sets of a certain species 

 eggs to be able to study them, but believe they can be studied to 

 a certain extent in the field, without disturbing the nest or eggs. 



Neai'ly all of the sets noticed were built near the ground ; 

 most of them in a small growth of oak and maple. Some were 

 placed in a dead bush about 12 feet from the ground ; others on 

 the ground at the foot of a bush. None of the nests found were 

 over 18 feet from the jriound. 



