The Prothoxotaky AVarbleu 113 



It was very (evident from the old bird's actions that she was 

 trying to coax the young one ont of the nest. She would 

 remain nearby twittering and calling for a considerable time 

 before going to the nest to deliver the food she carried. The 

 young bird left the nest the following day (Monday) and 

 neither young nor old birds were seen again, although the 

 vicinity of the nest was visited a number of times later. 

 Although no other young were seen, it is quite likely that 

 the one we found was the last one of a larger brood to leave; 

 the nest. 



The distribution of the Prothonotar}^ AVarbler in Iowa does 

 not seem to be fully known. It has been observed along the 

 Missouri river as far north as jMills county, Iowa, and pos- 

 sibly at 8ioux City. Its plentiful occurrence along the upper 

 Mississippi river is well recorded by Dr. T. S. Roberts (see 

 the Auk, XVI, 1899, pp. 236-246). The only published 

 account, apparently, of its distribution within the state of 

 Iowa occurs in Anderson's Birds of Iowa, from Avhich the 

 following paragraph may be quoted : 



"It is a bird of southern distribution and is only tolerably 

 common along the bottom lands of the larger rivers in south- 

 ern Iowa. It reaches to about its northern limit on the Iowa 

 river in Johnson county, on the Cedar river in Blackhawk 

 county (Peck), and the Des Moines river in "Webster county 

 (Somes). Dr. Trostler reports it as a common summer resi- 

 dent, but becoming scarce, in Mills county on the INIissouri, 

 while Dr. Rich reports it as rare at Sioux City. Dr. B. H. 

 Bailey shot two males at Lansing, Allamakee county. Iowa, in 

 1904. The most northern record outside of the ]\Iississippi 

 bottoms was one male, seen along the Des Moines river in 

 Kossuth county, by W. H. Bingaman, May 20, 1901. The 

 liird was not taken, but identity is positive, Mr. Bingaman 

 having found many nests in southern Illinois." 



Dr. Roberts (Auk, XVI, p. 240) refers to an "indefinite 

 record" for the region of Heron Lake. INIinnesota, only about 

 twenty-five miles directly north of Lake Okoboji, but which 

 he thought was a mistake in identity. I have no information 

 as to the authoritv for this record and am unable to judge as 



