8o THE CHICAGO ACADEMY OF SCIENCES. 



sets in. Occasional stragglers may be seen during a period of 

 warm days in the winter. 



Its range includes the whole of temperate North America, 

 south in winter to Central America and northern South America. 



Genus JEGIALITIS Bole, 1822. 



.aigialitis semipalmata (Bonaparte). Semipalmated Plover. 



Charadrius semipalmatus Bonapaete, Journ. Acad. Nat. Sci. Phila- 

 delphia, V, 1825, 98. 

 Mgialites semipalmatus Bonapaete, Geog. & Comp. List, 1838, 45. 

 Popular synonyms : Ameeican Ring Plovee. Ring-neck. Beach 



BiBD.' 



A common migrant. On their northward migration, these 

 Plovers pass our vicinity early in May, though a few may straggle 

 along until the end of the month. They return to us again the 

 latter part of July and remain until the latter part of October. 

 Mr. E. W. Nelson says :* "The second of July, 1873, I obtained 

 several specimens of this species near Chicago. From the condi- 

 tion of the abdomen and ovaries of one specimen, and the pres- 

 ence of several recently fledged young, I came to the conclusion 

 that they had nested in the vicinity. It is barely possible, how- 

 ever, that these birds were unusually early arrivals from more 

 northern breeding grounds, although the arrivals from the north 

 generally begin about the last of the month. My suspicions that 

 the species either breeds in this state, or at no far distant point, 

 were strengthened the following season when several females ex- 

 amined the last day of May contained eggs which would have 

 been deposited within a short time." The following record is of 

 some value as indicative of the possibility of this species nesting 

 not very far from our area. Mr. Frank C. Baker, Curator of the 

 Academy, and myself observed a flock of eight adults at Worth, 

 Illinois, June 20, 1894. 



The range of this species may be given as North America 

 in general, breeding in Arctic and subarctic regions and migra- 

 ting in winter through the tropical countries to Brazil and Peru. 



.ffigialitis meloda (Ord). Piping Plover. 



Charadrius melodus Oed, ed. Wils., VII, 1824, p. 71. 

 ^gialites melodus Bonapaete, Geog. & Comp. List, 1838, p. 45. 

 JEgialiiis melodus var. circumcinctus Ridgway, Amer. Nat., VIII, Feb. 



1874, 109. 

 Popular synonyms : Ringed Piping Plovee. White Ring-neck. 



Western Piping Plovee. Belted Piping Plovee. 



*Birds of Northeastern Illinois, Bull, of the Essex Institute, Vol. VIII, 1876, 123. 



