Bird Observations 



Thrushes. It is very difficult to dis- 

 tinguish the Olive-backed from the Grey- 

 cheeked. The throat of the Olive-backed 

 is whiter, and breast spots rather darker 

 and more clearly defined; it also has a 

 marked ring of yellowish around eye, but 

 the Grey-cheeked has this also, though not 

 so distinctly. Breast spottings of both' 

 these thrushes are darker and more dis- 

 tinct than those of Wilson's Thrush (the 

 Veery, or Tawny Thrush) ; the latter has 

 rather faint tawny spots, which do not ex- 

 tend far down from the throat. 



VlREOS. The Warbling is the dullest 

 colored and one of the smallest. It has a 

 wavering white line over the eye which 

 stops just in front of eye. The Red-eyed 

 has a straight white line over the eye 

 which extends to bill, giving a striped ap- 

 pearance to side of head; the Red-eyed is 

 also decidedly green on the back and a 

 much prettier and more elegant looking 

 bird than the Warbling. Bell's Vireo is 

 dull like the Warbling, but much smaller, 

 the smallest of the family. Philadelphia 

 vireo, a lovely bird, soft, delicate coloring, 

 with faint wash of yellow on breast, back 

 tinged with ashy red. Yellow-throated 

 vireo, throat bright yellow (much yellower 



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