HISTORY OF CALIFORNIA. 338 



well as Oregon and the Rocky Mountains, -where it 

 spends the mild season. About the middle of March, 

 I already heard their song amidst the early blooming 

 thickets and leafy woods of the Altamaha ; but they 

 do not arrive in Pennsylvania and this part of New 

 England before the 1st of May. About the close of 

 August in the northern, and by the middle of Septem- 

 ber in the central States of the Union, or as soon as 

 their second brood are capable of joining the migrating 

 host, they disappear, probably in the twilight, and 

 wing their way by easy stages to their tropical desti- 

 nation, passing through Louisiana in October, and 

 appearing at length, about Vera Cruz, from whence 

 they spread their numerous host through tropical 

 America to Guiana, Cayenne, St. Domingo, and other 

 of the larger contiguous islands of the West Indies. 



Mr. Nuttall also places in California and Oregon, 

 the Blue Mountain Warbler (Sylvicola montana), the 

 Hermit Warbler (Sylvicola Occidentalis), Townsend's 

 Warbler, (Sylvicola Townsendi,) and that sweet 

 songster, the Maryland Yellow Throat, (Trichas 

 Marylandica.) He says in relation to the Yellow 

 Throat : 



This common and familiar species extends its sum- 

 mer migrations from Florida to Nova Scotia, arriving 

 in Pennsylvania towards the middle of April, and in 

 this part of New England about the first week in May. 

 They return to the south in September ; a few strag- 

 glers of the young, however, may be seen to the first 

 week in October, and though some may remain and 

 winter in the Southern States, it is more probable 

 that the main body retire at this season into the in- 

 terior of tropical America ; as they were seen late in 

 autumn, around Vera Cruz, by the naturalist audi 



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