OF EASTERN PENNSYLVANIA. '271} 



XnttalU, Jaculus htidsoiihis* Sorex Thompsonii, Scalops 

 aqttatictis* Condylura cristata, Lasiurns noveboracensis, 

 L. cinereus, Putorius nigrescens^ and other quadrupeds ; 

 Stiiruclla magnet, Ortyx virginianus, Philohela minor ^ 

 among' ares ; besides Cvrtophylliis concavtis, Phylloptera 

 obi ongi folia, Conocephahis cnsigcr^ CEdipoda Carolina, 

 Prionus laticollis* Lachnostcrna qiicrcina, etc., among 

 insects. 



We have never observed this species nesting in this lati- 

 tude (Phila.). It is solely a winter resident, making its 

 appearance about the first of November, and taking its 

 departure early in April, and even later when the season 

 is backward. Mr. John Krider of Philadelphia, gives it 

 as a breeder in New Jersey. In the southern counties of 

 the latter State, we have found paired individuals as late as 

 July, which would lead us to infer that a few remain there 

 to breed. 



From all the information concerning the nesting of this 

 species that w T e have been able to glean, it appears that 

 the nest is generally placed in a crotch of a tree, not far 

 from the summit. It is composed, externally, of sticks, 

 dry twigs, and branchlets, which constitute a substantial 

 framework ; and, internally, of fine hay, feathers, and down, 

 which render it warm and cosy. Those found upon high 

 river-banks and cliffs, contain similar materials, but with 

 less exterior, and a greater supply of the internal elements. 

 Out of fifty-eight nests obtained by Mr. Macfarlane, in Arc- 

 tic regions, forty-six were constructed on trees, generally 

 large pines, and, ordinarily, at an elevation of twenty feet. 

 The remainder, on margins of steep shaly cliffs, on the 

 banks of lakes, rivers, and creeks. 



Messrs. H. R. and F. II. Stover, nephews of Dr. Brewer, 

 says the latter, found these Hawks nesting on the rocky 

 shores of Labrador. The nest was placed on a tall rock 

 which projected over the water, and was readily 

 approached from above, but whollv inaccessible from be- 



