SYLVIANjE. 
SIALIA. 
83 
Golden-crested Wren, Sylvia Regulus, Wins. Amer. Orn. v. i. p. 126. 
Regulus cristatus, Bonap. Syn. p. 91. 
American Fiery-crowned Wren, Regulus tricolor, Nutt. Man. v. i. p. 420. 
American Golden-crested Wren, RegTxlus tricolor, Aud. Orn. Biog. v. ii. p. 476. 
133. 3. Regulus Calendula, Linn. Ruby-crowned Kinglet. 
Plate CXCV. Male and Female. 
Upper parts greenish-olive, anteriorly tinged with grey, on the 
rump inclining to yellow ; a patch of vermilion on the crown of the 
head ; quills and tail dusky, edged with greenish-yellow ; secondary 
coverts and first row of small coverts tipped with greyish-white, 
a circle of the same round the eye ; lower parts greenish-white. Fe- 
male similar, with the tints duller, especially the greenish-yellow of 
the wings. Young without the coloured patch on the crown, and 
more deeply tinged with yellow beneath. 
Male, 4 1, 6. 
Breeds in Labrador. In autumn migrates to the Southern States, as 
far as Texas. Abundant. 
Ruby -crowned Wren, WiLS. Amer. Orn. v. i. p. 83. 
Regulus Calendula, Bonap. Syn. p. 91. 
Ruby-crowned Wren, Sylvia Calendula, Nutt. Man. v. i. p. 415. 
Ruby-crowned Regulus, Regulus Calendula, Aud. Orn. Biog. v. ii. p. 546. 
GENUS II. SIALIA, Swains. BLUE BIRD. 
Bill of ordinary length, nearly straight, broader than high 
at the base, compressed toward the end; upper mandible 
with the dorsal line straight and slightly decimate, until near 
the end, when it becomes convex, the ridge narrow, the sides 
convex toward the end, the edges overlapping, with a distinct 
notch close to the narrow deflected tip ; lower mandible with 
the angle of moderate length, and narrow, the dorsal line 
straight, the sides convex, the edges direct, the tip narrow. 
Nostrils basal, oval. Head rather large, ovate, neck short ; 
body moderately full. Feet of ordinary length, rather slen- 
der ; tarsus shorter than the middle toe and claw, its lower 
scutella only distinct ; toes of moderate length, the first stout- 
er, the lateral equal, the third much longer ; the fourth ad- 
herent at the base ; claws moderate, well curved, compres- 
sed, laterally grooved, acute. Plumage soft and blended . 
short bristles at the base of the upper mandible. Wings very 
