324 Roosevelt Wild Life Bulletin 



commonly heard. Its nest is a beautiful structure of soft materials 

 such as fern wool, saddled on a horizontal limb, and decorated on 

 the outside with lichens. Two nests were found in the Park, one on 

 Quaker Run, July 14, and the second in the Tunungwant Valley, 

 July 22. Both nests contained young, and I watched the mother 

 bird feeding them by the curious process of regurgitation. 



Green Heron. ' Buto rides virescens virescens (Linn.) 



This bird is the smallest of the heron family to be found in the 

 Park. In the field it most frequently appears to be blue or greenish 

 blue, but actually the color is green. This color is found on the 

 back, wings and top of the head, while the neck is reddish brown 

 on the back and sides, and white, striped with reddish brown 

 underneath. 



It is common in the trees and bushes bordering streams through- 

 out the Park, and may often be seen standing on the bank of a 

 stream or pool or wading in the shallows. When in flight the long 

 neck is usually drawn up, and the yellow legs extended, making it 

 appear not so long-necked a bird as it really is. 



The common call of the Green Heron is a high-pitched, loud, and 

 rather squeaky " kuleeup," uttered when the bird is startled from 

 its haunts. 



The nest is a flat platform of sticks, placed in a small tree or 

 bush near the stream. When the young are several days old they 

 leave the nest and climb among the tree-tops, often sitting in a 

 row on a branch, awaiting the approach of the mother with food. 

 Such a familv of voung was observed being fed in a tree on the 

 bank of Wolf Run, July 18. 



Yellow-billed Cuckoo. Coccyzus americanus amcricanus (Linn.) 



Cuckoos are easily distinguished from other birds by their size, 

 slightly larger than the Robin, their long tails, and plain-colored 

 plumage, — brown above and white below. Separating the two 

 species of Cuckoo, the Yellow-billed and the Black-billed, is more 

 difficult. When perching, the former may be known by the large 

 white spots on the under side of the tail, the yellow-colored bill, 

 and the lack of red about the eye. When flying, the cinnamon- 

 brown color that flashes in the wings will distinguish it. 



This bird is fairly common in the Park, occurring most fre- 

 quently in trees or bushes along the stream border, but also in 

 thickets and along the edges of forests. Cuckoos are not always 

 easily seen, but judging by its notes the Yellow-billed was a little 

 commoner than the Black-billed species. 



The commonest call of this Cuckoo is a long one, like " cuk-cuk- 

 cuk-cuk-cuk-cuk-cuk-cuk-cow— cow — cow," with the time retarded 

 at the end. Not only the time of the call, but the quality of 

 voice in this bird differs from that of the Black-billed Cuckoo, being 

 harsher and the notes less like a gurgle. 



The nest of this bird is usually hidden in a thick bush or tangle 

 of vines. It is made of sticks, and is poorly constructed and almost 



