THE NATUKAL HISTORY SURVEY. 7 1 



Genus PELIDNA Cuvier, 1817. 



Pelidna alpina sakhalina (Vieillot). Red-backed Sandpiper. 



Tringa alpina Wilson, Amer. Orn., VII, 1813, 25, pi. 56, fig. 2 Cneo 



Linnaaus). 

 Scolopax sakhalina Vieillot, Nouv. Diet. d'Hist. Nat., Ill, 1816, 359, 



(cf. Buturlin, Auk, XXI, 1904, 53). 

 Tringa alpina var. americana Cass., in Baird's Birds N. Amer., 1858, 



719. 

 Pelidna alpina americana Ridgway, Proe. U. S. Nat. Mus., 1881, 200. 

 Pelidna pacifica CouES, Proc. Acad. Nat. Sci. Philadelphia, 1861, 189. 

 Pelidna alpina pacifica Stejneger, Bull. U. S. Nat. Mus., VIII, 1885, 



120. 

 Pelidna alpina pacifica Ridgway, in A. O. U. Check List, 1886, No. 143a. 

 Popular synonjTns: Bed-backed Snipe. Dunlin. 



A common spring and fall migrant. It is usually seen along 

 the sandy shores of the small lakes and pools of our area. The 

 earliest spring arrival, in my records, is the seventeenth of May, 

 and the latest fall record the twentieth of October. 



Its range covers North America in general, breeding far 

 north. 



Genus EREUNETES Illiger, 1811. 



Ereunetes pusillus (Linnaeus). Semipalmated Sandpiper. 



Tringa pusilla LlNN^TJS, S. N., ed. 12, I; 1766, 252. 



Tringa semipalmata Wilson, Amer. Orn., VII, 1813, 131, pi. 63, fig. 3. 



Ereunetes pusillus Cass., Proc. Acad. Nat. Sci. Philadelphia, XIII, 



I860, 195. 

 Popular synonyms: Peep. Sand Snipe. Ox-eye. 



A common migrant, occurring in about equal numbers with, 

 Actodromas minutilla. Its spring and fall occurrence within our 

 limits is at about the same time as that of the Red-backed Sand- 

 piper. Mr. E. W. Nelson gives the following note:* "Very 

 abundant migrant and may remain through' the summer. From 

 repeated dissections I am confident these are barren birds and, 

 as Mr. Maynard suggests, probably young of the preceding year." 



This species breeds in the far north and its range covers at 

 least the whole of eastern North America, migrating southward 

 in winter to the West Indies, Central America and South America. 



Genus CALIDRIS Cuvier, 1799-1800. 



Calidris arenaria (Linnseus). Sanderling. 



Tringa arenaria Linnjeus, S. N., ed. 12, I, 1766, 251. 



Calidris arenaria Leach, Syst. Cat. Brit. Mam. & Birds, 1816, 28. 



Popular synonym: White Snipe. 



*B.ull. Essex Inst., Vol. VIII, p. 126, 1876. 



