64 Oberholser, Notes on N. A. Birds. IV. [j^. 



macularia, which is the original of the species now known as Actitis 

 macularia. Our Pectoral Sandpiper must, therefore, retain its 

 present designation of Pisobia maculata (Vieillot). 



Agelaius phoeniceus arctolegus Oberholser. 



The Northern Red-winged Blackbird was originally described l 

 from specimens taken in Mackenzie, Alberta, and Manitoba. A 

 large amount of material, much of it from the United States, 

 examined during the last ten years, serves now to substantiate the 

 validity of this form on the characters adduced in the original 

 diagnosis. Although Agelaius phoeniceus arctolegus has been 

 sometimes synonymized with Agelaius phoeniceus fortis, it is clearly 

 different from that form by reason of the darker coloration of the 

 female, both above and below; by the shorter wing and tail, larger 

 bill, and somewhat paler buff of wing-coverts in the male; and is 

 really much more closely allied to Agelaius phoeniceus phoeniceus, 

 from which it is separable chiefly by its decidedly greater size, 

 particularly the bill, as may readily be seen by reference to the 

 original description. 2 Recent information permits also a much 

 better delineation of its geographic range, which, together with 

 that of Agelaius phoeniceus fortis , as now restricted, are given below. 



Agelaius phoeniceus arctolegus. — Middle Canada with eastern and 

 middle United States: breeds north to northern Manitoba and 

 southern Mackenzie; west to southwestern Mackenzie, central 

 Alberta, and central Montana; south to southeastern Montana, 

 southeastern South Dakota, northwestern Iowa, southern Minne- 

 sota, and northern Michigan; east to northern Michigan and east- 

 ern Manitoba. Winters north at least to Arkansas and Kansas; 

 south to southern Texas, Louisiana, and casually Alabama. Mi- 

 grates west to Colorado and east to Ohio, casually to Connecticut. 



Agelaius phoeniceus fortis. — Middle United States, west of the 

 Mississippi River: breeds north to Nebraska, Wyoming, western 

 Montana, and Idaho; west to Idaho and Colorado; south to Colo- 



1 Agelaius phoeniceus arctolegus Oberholser, Auk, XXIV, No. 3, July, 1907, p. 332 (Fort 

 Simpson, Mackenzie, Canada). 



2 'The Auk,' XXIV, No. 3, July, 1907, pp. 334-336. 



