224 Trans. Acad. Sci. of St. Louis. 
It is easy of approach and, on being disturbed, instead of taking 
wing will usually dive, hence the vernacular name Hell Diver. 
The nest has never been found in Jackson County, but pairs of 
birds have remained all summer on Mill Creek, north of Inde- 
pendence (Bush), on Fish Lake, and on the lower Blue River. 
A nearly full grown young bird was seen at the mouth of Blue 
on June 13, 1916. 
Suborder Cepphi. Loons and Auks. 
Family GavipAE. Loons. 
GAVIA IMMER (Brunnich). Loon. 
Rare migrant. 
The few available records of this once common migrant indi- 
eate that it arrives from the north about the middle of October 
and returns during the first two weeks in April. 
It is observed mainly on the Missouri River, though a speci- 
men was taken at Lake City on October 10, 1902. It is still oe- 
easionally taken by duck hunters and a few individuals have 
been known to winter here during mild and open winters. 
Order LONGIPENNES. Long-winged Swimmers. 
Family STERCORARMDAE. Skuas and Jaegers. 
STERCORARIUS POMARINUS (Temmineck). Pomarine Jaeger. 
Accidental visitant. 
A fine specimen of this unlooked-for ocean bird was secured 
by two duck hunters on the Missouri River near the Eaton Bar 
on November 28, 1915. The skin is now in the possession of 
Charles Tindall of Independence, and constitutes the only ree- 
ord for the state. 
That there might be no question as to the identification, the 
specimen was forwarded to the Biological Survey at Washing- 
ton and identified by Dr. H. C. Oberholser. 
STERCORARIUS PARASITICUS (Linn). Parasitic Jaeger. 
Rare winter visitant. 
The Parasitic Jaeger has been taken several times by duck 
hunters on the Missouri River, though there are no specimens 
to substantiate the records. A flock of five were observed at 
close range near the mouth of the Big Blue River on April 23, 
