RUSCHENBERGER'S SERIES. 



ORNITHOLOGY: 



THE NATURAL HISTORY OF BIRDS. 



THIRD-BOOK 



OF 



NATURAL HISTORY. 



PREPARED FOR THE USE OF 



SCHOOLS AND COLLEGES. 



W. S. W. RUSCHENBERGER, M. D,, 



SURGEON IN THE U. S. NAVY; FELLOW OF THE COLLEGE OF PHYSICIANS ; 



HON. MEMBER OF THE PHILADELPHIA MEDICAL SOCIETY; 



MEMBER OF THE ACADEMY OF NATURAL 



SCIENCES OF PHILADELPHIA; 



ETC., ETC. 



FROM THE TEXT OF 



MILNE EDWARDS, & ACHILLE COMTE 



PROFESSORS OF NATURAL HISTORY IN THE COLLEGES OF 



HENRI IV, AND CHARLEMAGNE. 



WITH PLATES. 



PHILADELPHIA : 



TURNER & FISHER: 



PUBLISHERS, 15 NORTH SIXTH STREET; 



AND No. 52 CHATHAM STREET, NEW YORK. 



1842. 



