THE AXGLKR AND H TXTSM AX 181 



an uncertainty as to which form predominates during win- 

 ter. "A. obscura" is a pretty common winter resident in 

 Louisiana, while "A. rubripes" reaches Arkansas, and one 

 form or the other ranges in winter as far north as southern 

 Ohio, southern Indiana, and southern Illinois. 



Florida Duck: 



"Anas fulvigula," or Florida duck, is a non-migratory 

 species, breeding commonly in the southern half of Flor- 

 ida, and less commonly in the northern part of the State. 

 ]t appears to be absent entirely from northeastern Florida, 

 but occurs along the northwestern coast. 



Mottled Duck: 



This bird, "Anas fulvigula maculosa," is a resident of 

 Texas and southern Louisiana. In the State of the "Lone 

 Star" it occurs from the mouth of the Rio Grande north- 

 ward and west to about the central part of the State. It is 

 also accidental in Kansas. 



Abert Duck: 



This species is known only from the type specimen 

 taken at Mazatlan, Mexico, designated "Anas aberti." 



Diaz Black Duck: 



This duck, "Anas diazi," is a form of " black duck" re- 

 sembling very much "Anas fulvigula," It is non-migra- 

 loi y and occurs in central Mexico. 



Gadwell: 



The principal winter home of the gadwell, "Chaulel- 

 asmus streperus," is in the lower Mississippi Valley, es- 



