134 IOWA ACADEMY OF SCIENCE Vol. XXV, 191 S 



111 1915 the country was again alive with ducks, and wliile 

 more species were present, these did not linger so late as in the 

 previous year. Large numbers remained about a week or more 

 and during that time became quite tame. A muddy willow- 

 grown point projecting into the Goose ponds formed a favorable 

 observation point. On March 31 at this place I noted the fol- 

 lowing fourteen species of ducks and geese in a few hours, all 

 within twenty to thirty yards: mallard, gadwall, baldpate, green- 

 winged teal, blue-winged teal, pintail, red-head, canvas-back, 

 scaup, lesser scaup, ring-necked duck, ruddy duck, w^hite-fronted 

 goose, and Canada goose. This place of concealment looked out 

 over a favorite feeding spot, and ducks of different species kept 

 drifting in throughout the day. The numbers present varied 

 from a few dozen to many hundreds and furnished an interesting 

 study. 



LOCALITIES. 



It may be best to define the location of some of the places most 

 frequently referred to in the following annotated list: 



3Iornions Bidge. — A rough, wooded ridge extending several 

 miles north from the mouth of Minerva creek along the west 

 bank of Iowa river. 



Goose Ponds. — An abandoned channel of Iowa river which 

 may be one or a series of ponds according to the stage of the 

 water in the river. Northwest of Marshalltown on the west side 

 of the river. 



Cemetery. — Between Marshalltown and Iowa river. 



Soldiers' Home. — Between the western part of IMarshalltown 

 and Iowa river. 



City Park. — A tract of forty acres along the river just east of 

 the cemetery. 



Country Chih. — On the Iowa river bottom one and one-half 

 miles east of Marshalltown. 



ANNOTATED LIST. 

 The annotated list following contains a total of 201 species, 

 all but two of which are from personal records made between 

 September 1, 1912, and September 7, 1915. A large percentage 

 of these records is based on specimens actually collected, all of 

 which arc now in the Public Lilirary at ^Marshalltown. An addi- 

 tional list of five species given in the hypothetical list includes 

 those forms on which my data wore not positive enough to war- 



