The Oologist. 



Vol. XXIII. No. 2. 



Albion, N. Y., February, 1906. Whole No. 223 



THE OOLOGIST, 



A Monthly Publication Devoted to 

 OOLOGY, ORNITHOLOGY AND TAXI- 

 DEEM Y. 

 FRANK H. LATTIN, Publisher, 

 ALBION, N. Y. 

 ERNEST H. SHORT, Editor and Manager. 



Correspondence and items of interest to the 

 student of Birds, their Nests and Eggs, solicited 

 from all. 



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ERNEST H. SHORT. Editor and Manager, 

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More About Those Green Leaves. 



In the January number I noticed an 

 article entitled, "Green Leaves in 

 Nest." This placing of green leaves 

 has always attracted my attention 

 in the Red-shouldered Hawk's nests 



about Eastern Massachusetts, and it 

 has often caused a good deal of spec- 

 ulation on the part of several of my 

 friends and myself. 



As Mr. Wood mentions the greater 

 part of this green leaf lining is placed 

 in the nest in the advanced stages of 

 incubation, and that, together with the 

 greater or less amount of down ad- 

 hering to the nest, always gives me a 

 very good idea of the freshness of the 

 eggs. In fact, I seldom climb a tree 

 when I can detect some down or a 

 green leaf or two with my glasses, as 

 the chances are that the nest is either 

 not inhabited or has not a complete 

 set. 



I have never seen a Hawk in the 

 act of placing any leaves in the nest, 

 nor plucking them from the tree, but 

 I have noticed a very peculiar varia- 

 tion in the nest lining in reference to 

 the species of tree the nest is placed 

 in. Now, for example, when the tree 

 is placed in a hard wood grove, the 

 leaves are most always taken from the 

 oak, and when in a hemlock tree, the 

 green lining is almost invariably hem- 

 lock twigs. Then, again, when the 

 nest is in a maple tree the nest sel- 

 dom has any green lining of any kind. 



Now, the conclusion that I have 

 drawn is not that the bird has any 

 sense of the beautiful, but more an 

 inborn desire to have the nest well 

 lined for the chicks that are soon to 

 hatch. Thus, as the Hawk, male or 

 female', is lazily basking in the sun, or 

 just returned from a huntuirPimems 

 just returned from the hunt it is seized 

 with the inspiration of nest building, 

 a most natural one during the incu- 



