74 IOWA ACADEMY OF SCIENCE Vol. XXVI, 1919 



April 27, 1913. Two nests with eggs were found on May 8, 1913. 

 A nest containing four newly-hatched young was seen on May 12, 

 1913, also a nest with four eggs on June 24, 1914, and a nest with 

 two young and two eggs on June 28, 1915. Birds were seen carrying 

 nesting material as early as March 29, 1913. 



INTRODUCED SPECIES 



200. Pliaisianus torquatus. Ring-necked Pheasant. A num- 

 ber have been released at various times at Mormons Ridge on the 

 State game preserve located there. A few were seen in June and 

 July, 1915, while the writer was camping on the ridge. 



201. Passer domcsticus. English Sparrow. An abundant per- 

 manent resident. There were one, or two albinos living about the 

 streets in Marshalltown. At least one of them mated with a 

 normal bird and reared a family all the members of which seemed 

 to be normal. 



On the morning of September 5, 1914, after a terrific hailstorm 

 155 dead English sparrows were reported to have been picked up 

 under a tree where a large flock roosted. Their nests were built 

 indiscriminately in the trees and vines or in crevices and crannies 

 about buildings and bridges. 



HYPOTHETICAL LIST 



1. Colyuihus anritiis. Horned Grebe. On August 22, 1913, at 

 Goose ponds, the writer shot what was probably an immature bird 

 of this species. Circumstances prevented either the saving or the 

 identifying of the bird before it spoiled. 



2. Lams franklini. Franklin's Gull. A farmer told the writer 

 of seeing a flock of small black-headed gulls over the Goose ponds 

 in the spring of 1914. They were probably of this species. 



3. Mergus serrafor. Red-breasted Merganser. One of the high 

 school boys described a "duck" which he saw on the open water 

 below the Marshalltown mill on February 8, 1915. The writer ac- 

 companied him to the place but the bird was gone. From his de- 

 scription it was undoubtedly a merganser and probably of this 

 species. 



4. Archibntco kujophus sancti-jolianuis. Rough-legged Hawk. 

 On February 7. 1914, the writer saw a large hawk which he took 

 to be this species, but did not get close enough to make the identity 

 sure. It undoubtedly occurs in severe winters. 



5. Polioffila ccrrulca ccrnilca. Blue-gray Gnatcatcher. On 

 May 3, 1914, a bird which almost certainlv was of this species was 



