5. MNTOTILTA. 



253 



which pervades the whole of the white on the upper surface and is 

 especially strong on the cheeks and sides of body, flanks, and under 

 tail-coverts. 



The adult female in winter plumage does not perceptibly differ 

 from the summer dress ; it is perhaps a. trifle more washed with 

 brown on the lower back and rump, and the dusky streaks on the 

 lower parts are not so pronounced. 



The adult male in winter plumage differs from the summer 

 plumage in having the ear-coverts ashy grey instead of black, and 

 in having the under surface white, through which, however, the 

 black streaks are more or less perceptible, so that the under surface 

 is strongly mottled. Many specimens gain the full summer dress 

 before leaving their winter home, and are then precisely similar to 

 examples from northern localities. 



" Northerly specimens are said to have the bill shorter and 

 straighter " (Coues). Eecent American authors have separated 

 them as M. borealis, but Dr. Coues (I. c.) does not seem to believe 

 that they are even subspecifically distinct from 31. varia. 



Hah. Eastern North America, west to Dakota, but not, as far as 

 is known, to the E-ocky Mountains, in any portion of the United 

 States ; north to the Fur Countries. Breeds throughout its North- 

 American range ( Coues). Winters in the southern borders of the 

 United States (Coues), and throughout Central America to Colombia 

 and Venezuela (S. Sf G.). Jamaica ; Cuba ; S. Domingo. 



a. c? ad. sk. 

 6. 5 ad. sk. 



c,d. (S 2 ad. sk. 

 e. 2 ad. sk. 



/. (S ad. sk. 



ff. 2 sii- 



h. cJ ad. sk. 



i. 2 ad. sk. 



k, c? ad. sk. 



/. d" ad. sk. 



m. cJ ad sk. 



n. Ad. sk. 

 0. Ad. sk. 

 ]}. Ad. sk. 

 q. Ad. .^k. 

 /•, s. Ad. sk. 

 t. Ad. sk. 

 ti, V. Ad. sk. 

 w. Ad. sk. 

 X. Ad. sk. 



Fort Simpson, June. 

 49th Parallel, May 18 



{Dawson). 

 Niagara Falls {J. G.). 

 Oyster Bay, Long Island, 



June 1 {Roosevelt). 

 Chicago, May 11 {H. K. 



Coule). 

 Half day, IlUnois, Aug. 20 



{U. K. Coale). 

 Hyde Park, Illinois, May 



11 {H. E. Coale). 

 Colebour, IDinois, Sept. 



{H. K. Coale). 

 Mt. Carmel, 111., May 



(*S'. Turner). 

 Washington, B.C. {Shu- 



feldt). 

 Washington, B.C., April 



27 {It Ridgtvay). 

 Guatemala. 



Guatemala (Constancia). 

 Bogota. 

 Bogota. 

 Bogota. 

 Venezuela. 

 Jamaica. 

 Jamaica, 

 Jamaica. 



B. R. Eoss, Esq. [P.J. 

 N. A. B. Commission [P.]. 



Gould Collection. 

 U.S. Nat. Museimi [P.] 



E. B. Sharpe, Esq. [P.] 



E. B. Sharpe, Esq. [P.] 



E. B. Sharpe, Esq. [P.] 



E. B. Sharpe, Esq. [P.] 



E. B. Sharpe, Esq. [P.] 



U.S. Nat. Museum [P.], 



U.S. Nat. Museum [P.] 



Goidd Collection. 

 Sclater Collection. 

 Sclater Collection. 

 J. Pm-die, Esq. [P.]. 

 Purchased. 

 Mr. Dyson [C.]. 

 Sclater Collection. 

 Capt. Hamilton [P.]. 

 Pm'chased. 



