96 
TENNESSEE SWAMP WARBLER. 
wing-coverts and sides dusky, spotted with black. Lower back dull yellow- 
ish-green, as is the tail, of which the outer web of the outer feather is whitish. 
Tips of the second row of coverts white, of the first row yellow; quills dusky, 
their outer webs tinged with yellow. A line from the lore over the eye, 
sides of the neck, and the throat, bright yellow. A dusky line behind the 
eye. The rest of the under parts dull yellow, excepting the sides. 
Length 4-3 inches ; bill along the ridge fy, along the gap ^ 5 tarsus 3. 
The May-bush or Service. 
Pyrus Botryapium, Willd. Sp. PI., vol. ii. p. 1013. Pursch, Flor. Amer., vol. i. 
p. 339.— Icosandria Pentagynia, Linn. — Rosacea, Juss. 
This species is distinguished by its ovate, acuminate leaves, racemose 
flowers, linear-lanceolate petals, pubescent germens, and smooth calycine 
segments. 
TENNESSEE SWAMP - WARBLER. 
Helinaia peregrina, Wils. 
PLATE OX.— Male. 
So very rare does this little bird seem to be in the United States, that in 
the course of all my rambles I never saw more than three individuals of the 
species. The first was procured near Bayou Sara, in the State of Louisiana, 
in the spring of 1821, when I drew it with the holly twig on which it was 
standing when I shot it. The second I obtained in Louisiana also, not many 
miles from the same spot, in the autumn of 1829, and the last at Key West, 
in May 1832. Of its migrations or place of breeding I know nothing. 
It is an active and nimble species, an expert catcher of flies, fond of 
hanging to the extremities of branches, like several others of the tribe. It 
utters a single mellow tweet , as it passes from one branch to another in search 
of food, or while on the wing, when it moves in a desultory manner for some 
distance, diving suddenly towards the tree on which it intends to alight. 
All the individuals which I procured were males. 
