BIRDS OP CLAY AND O’BRIEN COUNTIES 
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15. Marila americana. Red head. This species was regularly 
secured in small numbers by hunters and I have handled a num- 
ber killed in eastern Clay. 
16. Marila valisineria. Canvas back. This duck undoubtedly 
occurs although I have never seen one. Mr. Gilbert, of Marshall- 
town, Iowa, who hunted regularly at Trumbull lake, informed 
me that he secured them every spring. In August, 1913, while 
waiting for a train at Spencer, I saw a mounted male in a store 
window in a collection of local birds. I was unable to find the 
owner and so have no definite information regarding it. This 
species is included on the basis of Mr. Gilbert’s statement, 
17. Marila affinis. Lesser Scaup Duck. A very common 
migrant. It is curious that among the dozens of scaups handled 
from this region no specimens of Marila marila were found, al- 
though undoubtedly it occurs. 
18. Marila collaris. Ring-necked Duck. This duck was a 
tolerably common migrant and I shot it every spring around 
Webb where it was known as “Ring-bill” or “Black Jack” by 
the gunners who distinguished it from the scaup. 
19. Charitonetta albeola. Bufflehead. A tolerably common 
spring migrant in 1907. Rare after that time. 
20. Chen liyperboreus liyperboreus. Snow Goose. “White 
Brant,” A very common spring migrant. They often were as- 
sociated with blue geese and white fronted geese in flocks of con- 
siderable size. 
21. Chen caerulescens. Blue Goose. “White-headed Brant.” 
This species was a regular migrant. I collected one in March, 
1907, and usually saw three or four each year that were killed 
by hunters. 
22. Anser albifrons gambeli. White-fronted Goose. “Brant.” 
A common spring migrant. 
23. Brant a canadensis canadensis. Canada Goose. The most 
common goose of the region. The smaller ones are called 
“Brant” or “Black Brant” and possibly B. c. hutchinsi occurs 
among them, but I have no definite records of this subspecies. 
24. Olor columbianus. Whistling Swan. At various times 
swans, probably this species, have been killed in this region. I 
have one definite record — a bird killed by Mr. Gilbert, of Mar- 
shalltown, at Trumbull lake, during a two weeks" hunting trip 
