1895] MARYLAND ACADEMY OF SCIENCES. 319 



was taken by the writer on May 13, '88, at the Potomac River, 

 Alexander County, Va.; another by Mr. Ridgway on May 18, '88, 

 at Laurel, Maryland, and a third by myself on May 19, '88, in 

 Virginia, opposite Georgetown. Several others were subse- 

 quently seen and observed" (Wm. Palmer, Auk, vi, 71), "This 

 has always been regarded as the rarest of the flycatcher's ; very 

 few having been taken up to the present year ('92). On and 

 about May 18 for several days they were quite common and a 

 number were taken" (E. M. Hasbrouck, Auk, x, '93). "Com- 

 mon at times, I saw several on May 23, '91. Wm. Palmer shot 

 one on May 10, '94, and another on August 27, '89, and I shot 

 one on September 17, '90" (Richmond). 



Empidonax minimus (4G7). Least Flycatcher. 



Rare migrant, specimens have been taken on April 29 ('93, 

 Gray), on April 30 and May 7 ('92, Pleasants), on September 11 

 and 25 ('93, Gray), and September 28 ('92, Resler). At Wash- 

 ington, "common from April 25 to May 25 and from August 

 28 to September 25" (Richmond). 



On Dan's mountain, June 5 to 14, '95, three or four pairs 

 were mating in a grove of heavy timber. 



Family Alaudid^ — Larks. 

 Otocoris alpestris (474). Horned Lark. 



Irregularly abundant in flocks, which are sometimes quite 

 large, from November 10 ('94, Gray), to March 19 ('92, Gray); 

 they are most numerous in tidewater Maryland. At Washington, 

 from the first of November to April (A. C, 41). 



Otocoris alpestris praticola (4746). Prairie Horned Lark. 



This sub-species appearing in company with alpestris can 

 only be identified by close comparison with a series of specimens. 

 One, of several shot at Powhatan, on February 25 ('93, Gray), 

 was pronounced of this sub-species by Mr. Ridgway. 



