BLUE-BIRD. 
(. Ampelis sialis , Nobis. Sialia Wilsonii, Swainson. Sylvia sialis , 
Wilson, i. p. 56. pi. 3. fig. 3. [male.] Saxicola sialis , Bonap. 
Ann. JLyc. ii. p. 88.) 
Sp. Charact. — Blue; beneath ferruginous; the belly whitish. — 
Female dull blue. — Young , dusky, spotted with white ; beneath 
greyish white, clouded with dusky ; wings and tail bluish. 
This well known and familiar favorite inhabits prob- 
ably the whole continent of America to the very line of 
the tropics. Some appear to migrate in winter to the Ber- 
mudas and Bahama islands, though most of those which 
pass the summer in the North only retire to the Southern 
States, or the table land of Mexico. In South Carolina 
and Georgia they were abundant in January and Febru- 
ary, and even on the 12th and 28th of the former month, 
the weather being mild, a few of these wanderers war- 
bled out their simple notes from the naked limbs of the 
long-leaved pines. Sometimes they even pass the winter 
in Pennsylvania, or at least make their appearance with 
almost every relenting of the severity of the winter or 
