328 Roosevelt Wild Life Bulletin 



the Park may be written as " wit-wit-wit-wit-wit-wit-tititiwit," be- 

 coming faster and lower in pitch toward the end. This song was 

 a fair example of the song of the species, though it varies 

 considerably. 



The nest of this bird is hidden under a bank of moss or in the 

 roots of a fallen tree. It is made of moss and rootlets. 



Sparrow Hawk. Falco sparverius sparverius Linn. 



This little hawk may be known by its small size, pointed wiings, 

 light reddish brown back, and the black marks about its face. The 

 wings of the male are blue-gray, while those of the female are 

 mainly reddish brown. The more pointed wings and different flight 

 distinguish it from the Sharp-shinned Hawk, even when the colors 

 are not easily made out. 



The Sparrow Hawk is not common in the Park. One bird was 

 seen in Cain Hollow, a tributary of Quaker Run, July 11, and a 

 pair were seen in the Tunungwant Valley, July 25 and 27. These 

 birds like the open country for their hunting, but must have dead 

 trees or limbs for nesting holes. They find such conditions in the 

 Park more commonly along streams than elsewhere, where all the 

 birds seen were found, but are also likely to be found in orchards 

 and among shade trees, and hunting over open fields. 



The voice of this hawk is high and shrill, the commonest call 

 being a series of rapidly repeated notes, written in most books, as 

 " killy killy killv " but, as I usually hear it, only one-syllabled 

 " keh keh keh keh keh keh." 



The nest is in a hole in a dead tree, often one that has been 

 previously used by a Flicker. Such a hole was found in a dead 

 hickory near the place where the pair were noted in the Tunung- 

 want Valley, and was very likely their nesting site, although the 

 birds were not seen to enter it. 



Louisiana Water-Thrush. Seiurus motacilla (Vieill.) 



This bird, about the size of the English Sparrow, is plain uni- 

 form dark brown above with a white line over the eye, the only 

 distinctive marking of the upper parts. The under parts are white, 

 the breast, but not the throat, spotted with dark brown. It is easily 

 distinguished from the Oven-bird by its lack of an orange crown, 

 and separated with more difficulty from the Northern Water- 

 Thrush by the whiter, less yellowish under parts, white eye line 

 and unspotted throat. 



This species was found in but one place, and that not within the 

 Park boundary but along the Allegheny River just above Sala- 

 manca, where it was noted in song on July 3 and 5. It is probably 

 extremely rare, if it occurs at all within the Park. 



It is always found near water, its preferred summer home being 

 the mossy banks and wet stones of a fair-sized brook, where it runs 

 over the ground, flies low over the water, or sits on a wet stone, 

 tilting its tail up and down in a curious manner. 



When the bird sings it mounts to the tops of the trees that grow 

 along the stream. The song to my ear has a wild sweetness that 



