310 BULLETIN 2 3, UNITED STATES NATIONAL MUSEUM 



Spring.— W?iy\\& (1910) said of this bird in South Carolina: "This 

 species arrives with great regularity [Charleston County] as the fol- 

 lowing dates will show, viz., March 26, 1890 ; March 27, 1900 ; March 

 27, 1912 ; March 23, 1916. It is not common until the middle of April 

 and its passage through the coast region requires so long a time that 

 one not acquainted with the migrations of birds might readily believe 

 that it bred here . . . that this species should remain on the coast 

 until June, and not breed is very surprising." 



At that time he was, of course, unaware that the species contained 

 two races, but, as Outram Bangs has pointed out (1918), these March 

 arrival dates in coastal South Carolina occur when "true D. virens 

 is still in winter quarters in Mexico and Central America." Thus, 

 it will be seen that the migration times must vary considerably, and 

 the arrival of the coastal race is in advance of the true species, indi- 

 cating a different and less distant winter home, another phase to 

 consider when comparing the two. 



There is almost a complete dearth of additional information on ar- 

 rival dates in other southern states. My records of South Carolina 

 arrival dates in recent years do not vary much from Wayne's, and 

 he has no earlier ones. I have but once encountered waynei in spring 

 elsewhere than in South Carolina, this being a specimen observed in 

 full song in Rhetta Lagoon, Cumberland Island, Ga., on April 15, 

 1932. However, that it was, in fact, a migrant is beyond all question 

 for it is not present in its United States range in late fall and winter. 

 . In his description of the race in 1918, Bangs stated that "it would 

 seem not unlikely that the South Carolina form is resident and non- 

 migratory, and I hope Mr. Wayne will be able to prove whether or 

 not this is so." This belief of Bangs' was carried into the A. O. U. 

 Check-List (1931) which gives the range of this form as "resident 

 in the coastal district of South Carolina." This is not the case; 

 loaynei does not remain in winter, and is therefore not resident but 

 migratory, as I have previously pointed out (1932) . 



The migration of this race is as yet imperfectly known. While 

 any coastal migrant black-throated green warbler would probably 

 be referable to it, as virens appears to keep to the interior when 

 travelling north, as a matter of fact there are almost no records of 

 migratory occurrences. S. A. Grimes (MS.) tells me that he has 

 never observed any black-throated green warbler in the area about 

 Jacksonville, Fla., where he lives and where he is much afield, having 

 had years of experience. Earle R. Greene (MS.) similarly states 

 that his experience of over two years in the Okefenokee Swamp in 

 southern Georgia failed to produce "a single individual." Strictly 

 in line with his observations are those of Francis Harper (MS.) 

 whose experience in the Okefenokee is even more extensive than 



