Order PYGOPODES. Diving Birds. 
Suborder Colymbi. Grebes. 
Family Cotympmar. Grebes. 
AECHMOPHORUS OCCIDENTALIS (Lawrence). Western Grebe. 
Accidental, possibly casual, visitant. 
The Western Grebe has been taken once near Lawrence 
(Bunker), and there is a Missouri River record from adjacent 
territory on the north (southeastern Nebraska). While no speci- 
men has been taken in this immediate vicinity, this grebe very 
possibly occurs on the Missouri River here as a casual visitant 
during migration. 
CoLYMBUS HOLBOELLI (Reinhardt). Holboell’s Grebe. 
Occasional visitant. 
This rare bird has been taken but twice in this vicinity ; once 
in 1854 and again on September 15, 1905. Two grebes observed 
on April 28, 1917, in the Missouri River overflow at the mouth 
of the Big Blue, were identified as this species. It is to be looked 
for during the migration seasons on any large pond or stream, 
but is more likely to occur on the Missouri River. 
COLYMBUS NIGRICOLLIS CALIFORNICUS (Heermann). Eared Grebe. 
Regular but rare migrant. 
The Eared Grebe occurs from the middle of April to the first 
week in May, and again during the second week in November. 
The small number of actual records for this bird in Jackson 
county may be accounted for by lack of enough suitable reedy 
lakes. Two specimens have been taken on the Missouri River 
near Courtney, and the bird has been observed at Lake City. It 
occurs regularly and in numbers, during migration, about the 
river lakes in Platte County. 
PODILYMBUS PODICEPS (Linn.). Pied-billed Grebe. 
Common migrant and rare summer resident. 
The Pied-billed Grebe arrives from the last week in March to 
the middle of April, and leaves in late November. 
This small grebe may be looked for on any small pond or 
stream. It has been frequently noted on all of the park lakes. 
(223) 
