1S91.I LooMis oti Birds of Chester County, South Carolina. 17 1 



early part of May^ and the latter, from about the beginning of the second 

 week of August to about the middle of October - A.ug. 8, Oct. 21, the 

 extremes noticed. The greatest rush usually occurs during the fortnight 

 centring around October i. These late comers are supposed to be North- 

 erners. Individuals often grow exceedingly fat in autumn. They sing 

 while northbound. 



195. Dendroica dominica albilora Sycamore Warblek.— The Dcti- 

 (Iroica dontiuica-albilora group is represented in this section by both 

 dominica proper and albilora. The two forms, in fall at least, are about 

 equally numerous. Collectively, they are rather common, especially dur- 

 ing the migrations. The term of sojourn extends from the end of March 

 (the precise time varying in different years) to about the first of October 

 (March 22-Oct. 4). It has not been ascertained whether true albilora 

 breeds here; for the exact status of the breeding birds yet awaits determi- 

 nation. The breeders leave early, and a period of absence intervenes be- 

 tween their going and the coming of the August and September migrants. 

 As would naturally be anticipated, the locality furnishes a goodly supply 

 of intermediates. 



28. Dendroica virens. Black-throated Green Warbler. — A 

 spring and autumn migrant; tolerably common. March 3i-May9, Sep- 

 tember 20-October 24, are the earliest and latest dates of its capture. It 

 is eminently an October Warbler during fall. In full song in spring. 



196. Dendroica kirtlandi. Kirtland's Warbler. — The taking of a 

 female, Oct. 11, iSSS, has previously been noticed in this journal (Vol. 

 VI, Jan., 1889, P- 74)- The geographical position of South Carolina, 

 midway between the Bahama Islands and the States of Ohio and Michi- 

 gan, suggests that this bird, which was here late in the southward migra- 

 tion, was something more than a mere wanderer. 



38. Dendroica palmanim. Palm Warbler. — As a winter resident 

 the Palm Warbler can scarcely be regarded more than a straggler. 

 Tin'ough the past three winters only one was seen, which shows that pro- 

 tracted mild weather does not exert a conti^olling influence over its pres- 

 ence by causing greater abundance. In the southward migration it is 

 abundant. The first begin to appear about the second week of September. 

 Usually by the latter part of October the bulk have passed. In spring it 

 remains through April, — the chief month of its northward movement, — 

 but it does not become as plentiful then as in autumn. D. hypochrysca, 

 in winter, is even rarer and more uncertain. In fall, also, it is rare, but 

 during April it seems to be as numerous as, fialmarum. 



40. Seiurus aurocapillus. Ovenbikd, — Migratory; common. A 

 month, from about the middle of April to the middle of May, is consumed 

 in the northward passage, and over two months, from the beginning 

 week of August (7th earliest capture) to the middle of October, in the 

 southward. A belated female, taken Oct. 29, is an extreme instance of 

 tardiness. While passing through in spring the ordinary song notes are 

 vigorously pronounced. 



197. Seiurus noveboracensis notabilis. Grinnell's Waticr-tiikush. — 



