20 The Ornithology of Chester County 
out all synonyms with the exception of Michener’s 
Warbler, he includes the species given by Barnard 
and Michener; rejecting only the Gray-cheeked 
Thrush, and perhaps unconsciously, the Pine Warb- 
ler; 29 species only rest solely upon the authority 
of his predecessors, of which 3 seem undoubtedly 
erroneous as I have already shown. He has added 
12 new species to the county, most of them with 
more or less circumstantial annotations; the most 
important being Leach’s Petrel, the only record for 
the State; including, however, the White Gyrfalcon, 
which is not recognized in his later publications; 
likewise the Migratory Quail, which failed to be- 
come established. Dr. Warren’s continued activity 
resulted in several subsequent additions, the most 
notable being Audubon’s Warbler, the second East- 
ern record for this species. 
Dr. Michener’s second paper appeared in 1881, 
long after he had transferred his attention to other 
branches of natural history. This is a formal list 
of names compiled from Barnard, Warren, his own 
earlier list, manuscript of Harry Garrett and a few 
undesignated species he thought ought to be found in 
the county; the few annotations being in the form 
of footnotes. Since he remarks that “the number 
of species which have actually been found in our 
county is about 220,” and has actually recorded no 
less than 232 species including two synonyms; all 
species without satisfactory annotations and without 
record elsewhere up to this time, must be considered 
hypothetical; they are the Red-breasted Merganser, 
Baldpate, Green-winged Teal, Pintail, Canvas-back, 
