APPENDIX. 407 



Wilson. American Ornithology | or | the Natural History | of the | Birds of the 

 United States | illustrated with plates | engraved and colored from original 

 drawings taken from nature | by Alexander Wilson. | Published by Bradford 

 and Inskeep, Philadelphia, | 1808-1814, 9 Vols. 



Wilson and Bonaparte. American Ornithology; | or, j The Natural History | of the 

 Birds of the United States, | illustrated with plates | engraved and colored from 

 original drawings from nature, | by Alexander Wilson | and | Charles Lucian 

 Bonaparte. | With a Sketch of the Life of Wilson, | by George Ord, F. L. S., | 

 and | a classification of the genera and species of North American Birds, | by 

 Spencer F. Baird, | of the Smithsonian Institution, | Vol. I, (II, III.) | Phil- 

 adelphia: | Porter and Coates. | Date not given. (1871). 



[NOTE. Extracts were also made from different numbers of Bulletin Nuttall Ornithological Club, the 

 Auk. Forest and Stream, and the Ornithologist and Oologist. likewise several papers prepared by the 

 author, and published in annual reports of the Pennsylvania State Board of Agriculture. ] 



(B) Names of persons who have courteously sent the writer lists of species found in 

 different counties of the commonwealth, or otherwise materially aided him in 

 securing much valuable information concerning the avifauna of Pennsyl- 

 vania. 



In June, 1889, the writer prepared a " Provisional List" of the Birds of Pennsyl- 

 vania, with a view of learning the status of numerous species and subspecies which 

 had been attributed by various observers (reliable and otherwise) to our fauna, and 

 distri buted the same to naturalists and collectors in all sections of the State. The 

 following is a copy of the introductory page of said list (thirteen pages). About 

 five hundred, with circular letters, were distributed throughout the commonwealth. 

 Of this number between eighty and ninety were returned. Several which had been 

 carefully revised, were unfortunately valueless as the senders neglected to give 

 their names ; a few persons marked the lists so as to render them unintelligible. 



Provisional list, including natives, permanent residents, spring and fall mi- 

 grants, occasional visitants and "stragglers" or accidental visitants. Compiled 

 by B. H. Warren, M. D., West Chester, Pa. 



The numbers following the common names refer to check-lists of Prof. S. F. Baird 

 (marked B), published in 1858; Dr. Elliott Coues (marked C), published in 1873; 

 Prof. Robert Ridgway (marked R), published in 1880; Dr. Elliott Coues (marked 

 C), published in 1882, and that of the American Ornithologists' Union (marked U), 

 published in 1886, 



In addition to the different birds observed by myself, I have added a number of 

 species which have been given in writings (published and unpublished) of differ- 

 ent observers. This list has been prepared for gratuitous distribution among ornith- 

 ologists and oologists who are respectfully requested to make such additions and 

 corrections as their field experience will warrant 



The following suggestions are offered to those who will kindly aid in the prepara- 

 tion of an accurate list of the Birds of Pennsylvania : 



1. Mark with an * before the common names, the birds which breed regularly in 

 your locality. 



2. Place the letter R after the common names of birds found in your locality dur- 

 ing all months of the year. 



3. Indicate the birds which occur in your locality as spring and fall migrants, by 

 the letter M. 



4. Birds which are found in your locality only during the winter season mark with 

 the letter W. 



6. Place the letter Z after the common names of birds which occur in your locality 

 as occasional visitants, and state if possible what month and year the species was last 

 seen. 



