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 I 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: I 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 commonivealth, 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 whic-h 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 Ridg way (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. 
5. 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. 
