BIBBS, CATEBPJLLABS, ANB PBANT LICE. 



115 



Birds observed feeding 

 Rose-breasted Grosbeak. 

 Indigo Bunting. 

 Engiisli Sparrow. 

 Scarlet Tanager. 

 Cedar AVaxwing. 

 Red-eyed Vireo. 

 Yellow-throated Yireo. 

 Warbling Vireo. 

 White-eyed Vireo. 

 Black and Wliite Warbler. 

 Parula Warbler. 

 Golden-winged Warbler. 

 Nashville Warbler. 

 Yellow Warbler. 

 Chestnut-sided Warbler. 



on Hairy Caterpillars — Concluded. 

 Northern Yellow-throat. 

 Black-throated Green Warbler. 

 Oven-bird. 

 American Redstart. 

 Catbird. 



Brown Thrasher. 

 House Wren. 

 White-breasted Nuthatch. 

 Red-breasted Nuthatch. 

 Chickadee. 

 Wood Thrush. 

 Wilson's Thrush. 

 Ameiican Robin. 

 Bluebird. 



Birds feeding 

 Yellow -billed Cuckoo. 

 Black-billed Cuckoo. 

 Hairy Woodpecker. 

 Downy Woodpecker. 

 Yellow-bellied Sapsucker. 

 Kingbird. 



Crested Flycatcher. 

 Phosbe. 

 Wood Pewee. 

 Least Flycatcher. 

 Blue Jay. 

 Crow. 



Baltimore Oriole. 

 Chipping Spai-row. 

 Towhee. 



071 the P?/pce or Imagoes. 



Rose-breasted Grosbeak. 



Indigo Bunting. 



English Sparrow. 



Scarlet Tanager. 



Red-eyed Vireo. 



Yellow-throated Vireo. 



Black and White Warbler. 



Yellow Warbler. 



American Redstart. 



Catbird. 



Brown Thrasher. 



Chickadee. 



Robin. 



Bluebird. 



It is interesting to note that certain birds feed on the eggs 

 of some of the parent moths, and that many birds take the 

 moths in flight. Without going further into details here, I 

 shall endeavor later, in connection with the life history of 

 our more common and useful birds, to give some information 

 regarding the kind of hairy caterpillars each species eats, 

 and its comparative usefulness in this respect. 



Assuming that our observations have proved that birds eat 

 hairy caterpillars, it may be interesting to inquire why this 



