]28 
SYLVIA CORONATA. 
gradations of change. Wliile in their brown 
dress, the yellow on the sides of the breast and cro^j 
is scarcely observable, unless the feathers be 
with the hand ; but that on the rump is still vivid ; ^ 
spots of black on the cheek are then also obscuf^ 
The difference of appearance, however, is so great, 
we need scarcely wonder that foreigners, who h®. 
no opportunity of examining the progress of these vaf 
tions, should have concluded them to be two disti®^ 
species. 
This bird is also a pa-ssenger through Pennsylva®’^ 
Early in October he arrives from the north, in 
olive dre.ss, and frequents the cedar trees, devour'®^ 
the berric.s with great avidity. He remains n ith •' 
three or four weeks, and is very numerous where’^ 
there are trees of the red cedar covered with berr'*^ 
He leaves us for the south, and spends the "in' 
season among the myrtle swanip.s of Virginia, . . 
Carolinas, and Georgia. The berries of the 
cerifera, both the large and dn arf kind, are his p*®.. 
cular favourites. On those of the latter 1 found h' ^ 
feeding, in great numbers, near the sea shore, in I'l 
district of IVfaine, in October ; and through the "'I*,,; 
of the lower |)art.s of the Carolinas, wherever tlie my'V^ 
grew, these birds were numerous, skip|)ing about, 
hanging wings, among the hushes. In tliose parts ^ 
the country, they are generally known by the nam® ., 
myrtle birds. Round Savannah, and beyond it as 
as the Alatamaha, 1 found him equally numerouSi 
late as the middle of March, when his change of 
had considerably progicssml to the slate hue. M 
Abbot, who is well acquainted with this change, assn® 
me, that they attain this rich slate colour fully 
their departure from thence, which is about the 
March, and to the 10th of April. About the middl®.^ 
20th of the same month, they appear in Pennsylva® ^ 
in full dress; and after continuing to be seen, 
week or ten days, skipping among the high bran® 
and tops of the trees, after those larvie that feed on , 
opening buds, they disappear until the next Octo® 
