156 AMERICAN MIDLAND NATURALIST. 
destruction of forests and oe agrees of enemies are probably 
the principal elements in this chan 
ere is not space to discuss furthér changes in the bird 
fauna, even by families, but it may be pointed out that the 
house, Bewick’s and Carolina wrens and bluebirds are other 
species that have increased in numbers with the settlement of 
the region. Their preference for the vicinity of man is doubt- 
less a Vows acquirement and the result of better protection. 
Tos up the changes in the avifauna, the larger oe 
the ie $ specialized species, the species that are real or sup- 
d enemies of man's welfare, the species that are desirable 
e, the species that frequent marshes and the species that 
dwell in the deep woods have all suffered with the populating 
of the State. The species that frequent human habitations, 
those that are weak and not destructive in habit, and more 
especially those that are inhabitants of the drier meadows, 
pastures and orchards have increased in numbers and have 
extended re range and are still extending it. 
he opinion* that there are as many species nest- 
ing and lank i in the State now as when Audubon and Wil- 
son visited the region nearly a century ago. I doubt that the 
individuals are less numerous. They are certainly smaller in 
size, on the average, and most of thes more peculiar types have 
diminished or disappeared. 
(To be continued.) 
BIBLIOGRAPHY. 
"91. Blatchley, W. S.—A Catalogue of the Butterflies 
Know to Occur in Indiana. 17th Ann. Rep't. Indiana State 
Geologist, pp. ES 
"85. But A. W. —Observations on Faunal Changes. 
P Brookville Society of Natural History, No. 1, pp. 5-13. 
tury of Changes in the Aspects of Nature 
Proc. Fco Academy of mg pp. 31-42. 
'97. The Birds of Indian 22nd Ann. Rep't. Indiana 
State Gedani pp. 515-1187. 
'08. An Addition to the Birds of Indiana. Proc. Indiana 
Acad. Science, 190 1908, p 
gs eae NE Notes on the Habits of the 
OT Qn 2d Turtle. Proc. Indiana Academy of Science, 
EU un Deforestation and Its Effects Among the Hills of 
S contrary to views often expressed. For a confirmatory 
y *This i 
po pr relating to Chester County, Pennsylvania, see Saroi, Bird Lore, 
