BIRDS IN THE DISTRICT OF COLUMBIA. 



185 



228. American Bittern 



229. Least Bittern 



230. Great Blue Heron 



231. American Egret 



232. Snowy Heron 



233. Little Blue Heron 



234. Green Herou 



235. Black-crowned Night j 



Heron j 



236. Wood Ibis 



237. Glossy Ibis 



238. American Merganser. . 



239. Red-breasted Merganser 



240. Hooded Merganser 



241. Mallard . 



242. Black Duck 



243. Gad wall 



244. Widgeon 



245. Baldpate 



246. European Teal 



247. Green-winged Teal 



248. Blue-winged Teal 



249. Shoveller 



25C. Pintail 



251. Wood Duck... 



2.52. Redhead 



253. Canvas-back 



254. American Scaup Duck.. 



255. Lesser Scaup Duck 



2.56. Ring-necked Duck 



257. American Golden-eye 



258. Barrow's Golden-eye. .. 



259. Buffle-head .... 



260. Old-squaw 



261. American Eider 



262. American Scoter 



263. White-wjuged Scoter 



264. Surf Scoter 



Aug. to April. 

 May to Sept. 

 1 Found throughout 

 •< year, but does not 

 f breed here ? 

 j Usually rare. May to 

 I July or later. 

 Irregular in late 

 summer or early 

 autumn. 

 July and Aug. 

 May to Sept. 



j Several records in 

 1 July. 



I One record, about 

 < 1817. Liable to 

 ( occur in spring. 

 Sept. to March. 



( Sept. to March or 

 "/ later. 

 Oct. to April. 

 Oct. to April. 

 Aug. to April. 

 i Two records 

 I and fall. 

 Oct. to April, 

 j One inbtance 

 ] 1885. 

 Sept. to April or Maj'. 

 Sept. to June. 

 ) Sept. to March or 

 1 April. 

 Oct. to Ajiril. 

 Rare in summer: 



less so in spring 



and fall. 

 Oct. to May. 

 Oct. to April. 

 Oct. to March. 

 Oct. to April. 

 Sept. to April. 

 Oct. to April. 

 Two instances? 

 Sept. to April, 

 j Uncommon. Oct. to 

 J April. 



j One instance long 

 I ago. 



spring 



April, 



Oct. Mud Nov. 



*Rare at this season. 



