BIRDS OF PENNSYLVANIA. 243 



name it bears, in a cedar grove near my dwelling, while assisting me 

 in collecting birds in the spring of 1833. We at once pronounced it 

 new. Audubon did the same, and named and published it in both of his 

 large works. "This curious bird has long been a puzzle to ornithologists 

 in the uncertainty whether it is only a variety of 8. americana (Black- 

 throated Bunting) or a distinct species. Thus far (now more than forty 

 years) but one specimen is known, kindly presented to the Smithsonian 

 Institution by Dr. Michener. I do not feel able to decide the question 

 of its true relationship to the S. americana. While this uncertainty re- 

 mains it seems proper that Chester county should preserve a record of 

 its history as a guide to future observers." 



8p. Ch. "Male. Upper parts, head and neck all round, sides of body 

 and fore part of breast, slate blue ; the back and upper surface of wings 

 tinged with yellowish brown ; the inter scapular region streaked with 

 black. A superciliary and maxillary line, chin and throat, and central 

 line of under parts from the breast to crissum, white ; the edge of 

 the wing, and a gloss on the breast and middle of belly, yellow. A 

 black spotted line from the lower corner of the lower mandible down 

 the side of the throat, connecting with a crescent of streaks in the up- 

 per edge of the slate portion of the breast. Length, 5^ inches ; alar ex- 

 tent, 9 ; wing, 2.86 ; tail, 2.56 inches." S. F. Baird. 



Family TANAGRID^;. The Tanagers. 



226. *Piranga erythromelas Vieill. 



Scarlet Tanager. 608. 



227. P. r ubra (Linn.). 



Summer Tanager. 610. Is a trifle larger than the Scarlet Tanager. The 

 adult male is a "rose-red " or vermillion color : wings and tail feathers 

 are same color as body (unexposed portions of wing feathers, also ends 

 of primaries and secondaries, dusky), adult female is greenish or brown- 

 ish olive above, lower parts lighter. This bird like the Scarlet Tanager 

 is subject to great variations in plumage. Rare visitor; saw male and 

 female, May 25, 1876, in West Chester. Found chiefly south of Pennsyl- 

 vania, early in April these birds arrive in Florida from their wintering 

 resorts in the tropics. 



Family HIRUNDINIM. The Swallows. 



228. *Progne subis (Linn.). 



Purple Martin. 611. 



229. *Petrochelidon lunifrons (Say.). 



Cliff Swallow. 612. 



230. *Chelidon ery throe/aster (Bodd.). 



Barn Swallow. 613. 



231. *Tachycinetabicolor (Vieill.). 



Tree Swallow. 614. Most numerous in spring and falL 



232. *Clivicola riparia (Linn.). 



Bank Swallow. 616. 



233. *Stelyidopteryx serripennis (Aud.). 



Rough -winged Swallow. 617. 



t A. O. U. Check List, page 349. Hypothetical List " consisting of species which have been re- 

 corded as North American, but whose status as North American birds is doubtful, either from lack 

 of positive evidence of their occurrence within the prescribed limits (Continent of North America, 

 north of the present United States and Mexican boundary, and Greenland ; peninsula of Lower 

 California, with the islands belonging- thereto) of the present check-list, or from absence of sat- 

 isfactory proof of their validity as species."^.. 0. U. Check List, 1886. 



