Biological Papers. 261 



Genus Steganopus. 

 224. Steganopus tricolor Vieill. Wilson phalarope. A common migrant 

 and likely a resident; these birds have been seen in full breeding 

 plumage at LaPush. 



Family ScOLOPAClDiE: Snipes, Sandpipers, etc. 

 Genus Tringa. 



Subgenus Tringa. 



234. Tringa canutus Linn. Knot; Robin sandpiper. Common, visiting 

 even the islands in July each year. 



Description: This species is 10 inches long by 15 to 20 inches from tip to 

 tip of wing. Under parts cinnamon; upper parts dusky gray, washed often 

 with buff; tail coverts and rump white. 



Subgenus Actodromas. 



239. Tringa maculata Vieill. Pectoral sandpiper. Common, visiting even 

 the islands in July each year. 



Description: This bird is also known as Meadow snipe; Grass snipe; 

 Jack snipe. Length about 9 inches. Plumage: Chest dark gray to dark 

 gray streaked with duskia; upper parts mottled dusky or darker; rest of 

 plumage white. 



Subgenus Pelidna. 



243a. Tringa alpina pacifica Cous. Red-backed sandpiper. 



Description: This bird is about 8 inches in length and differs from the 

 other sandpipers in having its back, crown and upper tail coverts bright, 

 rusty ochraceous; sides and back part of belly white; chest grayish white; 

 middle of belly black. 



Genus Ereunetes. 



247. Ereunetes occidentalis Lawr. Western sandpiper. An abundant mi- 

 grant, returning southward in July, visiting also the islands off 

 the coast. 



Description: Under parts generally white in color; breast gray, spotted 

 with dusky; sides same as breast; rest of plumage bright chestnut, mottled 

 with gray, buff and black. Bird small. 



Genus Heteractitis. 

 259. Heteractitis incanus Gmel. Wandering tatler. Common in summer, 

 visiting also the islands off the coast in July and August each year. 



Description: This is a bird of about 10 inches in length. Anal region 

 pure white; throat white and dusky spotted; under parts barred with dusky 

 and white; rest of plumage plumbaceous gray to slaty gray. 



Genus Numenius. 

 265. Numenius hudsonicus Lath. Hudsonian curlew. A common migrant, 

 visiting the region in July and August, extending its visits even 

 to the islands off shore. 



Genus JEgialitis. 



Subgenus jEpialitis. 



274. ^gialitis semipalmata Bonap. Semipalmated sandpiper. A common 

 migrant. 



Description: This bird resembles the killdeer but has shorter legs, is 

 smaller and plumper; it has a heavy down under the feathers of the breast 



