PASSERES OSCINES TURDID.E. 



35 



places. This interesting species was first shown to belong- to the east- 

 ern Avifauna by ourselves (see Pr. Phila. Acad. Nat. Sci., Aug., 1861, p. 

 217). [12] 



6. (46.) Turdus ustulatus swainsoni (Cab.) Coues. (T. swAinsoni pi the original 

 edition. ) Eastern Olive-backed Thrush. 



A spring and autumn migrant ; does not breed here. The most 

 abundant of the Thrushes, excepting perhaps the Hermit ; we have seen 

 them in considerable tlocks in the fall. Arrives the second week in 

 April, remains but a short time, and returns in the fall the second week 

 in September, finally departing the second week of the following 

 month. [13] 



Subfamily MIMIN^E : Moekiug Thrushes. 

 7. (100.) Miinus polyglottus (Linn.) J'oie. MOCKING-BIRD. 



A summer resident ; rare. Arrives April 25; departs about the mid- 

 dle of September. This may be considered about the usual northern 

 limit of the Mockingbird, though it has occasionally been seen in New 



Fig. 3.— Mocking-bird. 



England, and in the West up to 12°. It breeds abundantly in Southern 

 Maryland, some 60 or 80 miles below Washington. Nest in a bush, 

 bulky, of sticks, &c. 5 eggs speckled. [15] 



8e (101.) Mimus carolinensis (Linn.) Gray. Cat-bird. 



An extremely abundant summer resident ; arriving the third week 

 in April, remaining until about the middle of October. It is found in 

 thickets and shrubbery, in all the briar-patches, along fences and brush- 

 heaps ; the nest is built in bushes, often in the heart of a smilax, and 



