330 TURDID^E. 



Luscinia sialis (Linn,), Giebel, Reich. Nat. Vog. p. 44 (1800). 

 Scialia scialis {Linn.), Le Moine, Ois. Canad. p. 202 (18G1). 



In the adult male in breeding -plumage the general colour of the 

 upper parts is brilliant metallic cobalt-blue ; lores, car-coverts, and 

 chocks dull brownish blue ; wings, wing-coverts, and tail brilliant 

 metallic cobalt-blue, broadly margined with brown on the inner 

 webs. (Jhiu, throat, breast, and flanks chestnut-brown with con- 

 cealed blue bases, shading into white on the belly and under tail- 

 coverts, the longest of the latter suffused with blue ; axillaries and 

 under wing-covcrts pale bluish grey with white margins ; inner 

 margin of quills pale grey. Bill black. Wings with the second, 

 third, and fourth primaries nearly equal and longest, bastard primary 

 0-7 to 0-45 inch. Legs, feet, and claws black. Length of wing 

 4-1 to 3-75 inches, tail 2-65 to 2-44, culmen 0-7 to 0-56, tarsus 0-85 

 to 0-8. 



The female differs from the male in having the cobalt-blue 

 without metallic gloss, much duller, and confined to the wings, 

 upper tail-coverts, and tail, the rest of the upper parts, including 

 the lores and the ear-coverts, being bluish grey suffused with brown ; 

 the undei-parts are much lighter and duUcr in colour, especially 

 on the chin and upper throat, and the under tail-coverts, axiUaries, 

 and under wing-coverts are nearly white. After the autumn moult 

 each feather on the upper parts of the male is obscurely tipped with 

 brown, and the quill- and tail-feathers have narrow pale margins 

 towards the tips, which are most consj)icuou8 on the innermost 

 secondaries. The feathers of the underparts look duller in con- 

 sequence of becoming paler towards the tips. In the female the 

 change is scarcely observable, except in the wings and tail, which 

 resemble those of the male. The male of the year differs from the 

 adult in having the outer web of the innermost secondaries broadly 

 margined with chestnut-brown, and the chestnut-brown of the 

 underparts is more chocolate. The young in first plumage resemble 

 the birds of the year in the wings and tail, but have the whole of 

 the small feathers of the upper parts a dull grey, those of the 

 upper back and scapulars having pale shaft- lines, the wing-coverts 

 having conspicuous white tips, and the feathers of the lower back 

 having obscure dark transverse bars. The feathers of the throat, 

 breast, and flanks have nearly white centres and browia margins. 



The Eastern Bluebird bi'eeds in the United States of America 

 east of the Eocky Mountains, and in the same longitude in South 

 Canada, migrating to the Southern States and Cuba during the 

 severest part of winter. It is a resident bird in the Bermudas. 



a. Ad. st. North America. Pm'chased. 



h. Ad. st. North America. J. Gould, Esq. [P.]. 



c. Ad. st. North America. Purchased. 



d. S ad. sk. North America. Lord Odo Russell [P.l. 

 e,f. Ad. sk. Ann Arbor, Michigan. Prof. J. B. Steere | P.]. 

 a, Imm. ; h, i. Juv. sk. Toronto, Canada R. B. Sharpe, Esq. [P.]. 



{J. Wliitehj). 

 k, I. Skeleton. Purchased. 



