6 - ALICE M. BORING AND .RAYMOND PEARL 
death. There were no wattles, the head being typically female 
in this regard. There were no true sickle feathers in the tail, 
although the tail was better developed, i.e., more towards the 
male type than in the normal female. There were no typical 
male hackle or saddle feathers. This bird was completely a her- 
maphrodite as to behavior, as it was observed to act alternately 
as a male and as a female in copulation. It never laid an egg. 
The bird was generally kept in a coop by itself except when being 
watched under special conditions to record its behavior. When 
put in a pen with pullets, it would act as a male, but as a female 
when put in with the cockerels. Finally one day when it was 
put down in a yard with some other hens to observe its behavior, 
it started to fight and was dead in five minutes. Reference in 
the later sections of this paper will show that the structure of 
the gonad at the time of death indicated that it was changing 
over from ovary to testis. 
Bird 1616 (fig. 6) was sent to the Station as an abnormal cock- 
erel by Dr. Dexter from Michigan in May, 1915. The bird was 
a cross between a Rhode Island Red male and a Plymouth Rock 
female. He was a year old when sent to Maine. For the Michi- 
gan period of his life, he is described as entirely hen-feathered 
and except for the head which is that of a rooster, he looked like 
a hen. He was very active and crowed a great deal more than 
usual. The other roosters chased him all over the farm, and 
the hens would not permit him to copulate with them, although 
he made frequent attempts to do so. After he reached Maine 
the female characters became more pronounced and the bird 
was recorded as a crowing hen. On July 31 she laid an egg, and 
between that time and August 25 she laid 12 eggs in all and 
nested twice. From then on she laid no more eggs and began 
to become more malelike in appearance. She was killed on March 
15, 1916, and at that time her external characters were a mix- 
ture of male and-female. She had no spurs, merely slight knobs 
such as all females have. She was very fat. She had no saddle 
feathers, but the hackle feathers were partly male. These her- 
maphrodite external characters ,correspond to the anatomical 
conditions described later—that is, the bird has an ovotestis, with 
