17 



bers at West Point and Omaha. Arrives in spring about the end of 

 April; departs by the end of September. 



6. *Podilymbus podiceps (Linnaeus) — Pied-billed Grebe. 



An abundant migrant, and a common breeder in suitable localities 

 throughout the state. Arrives about the middle of April and lingers 

 till October. 



Family GAVIID^— Loons 



1. Back black or blackish, distinctly spotted with white (2) 



I. Back blackish, not spotted with white, but the feathers gray tipped. . (3) 



2. Throat whitish, in summer foreneck with chestnut 



Red-throated Loon. 



2. Throat black, sides of neck with white streaks and no chestnut (3) 



3. Wing 13 to 15 inches long; crown black in summer Loon. 



3. Wing 11 to 13 inches long; crown ashy in summer. . Black-throated Loon. 



7. Gavia imber (Gunnison) — Loon. 



A not common migrant, breeding from northern United States 

 northward. Numerous records; Omaha, Lincoln, West Point, Rock- 

 port, Curtis, etc. Seen early in spring and late in fall. 



9. Gavia arcticus (Linnaeus) — Black-throated Loon. 



A bird of the arctic regions wintering south to the northern states. 

 One Nebraska record, a fine male,in the Rees Heaton collection,having 

 been taken at Curtis. 



II. Gavia lumme (Gunnison) — Red-throated Loon. 



Also an Arctic bird, found in the northern states in winter. Two 

 records, a specimen being taken on the Missouri near Omaha, Sept. 

 28, 1894, and another April 6, 1897, both males and both reported by 

 I. S. Trostler. 



Order II. LONGIPENNES — Long-winged Swimmers 

 A. Upper mandible of three pieces, a hook, lateral piece, and cere .... 



Stercoraridae. 



A. Upper mandible of one piece Laridae. 



Family STERCORARIDjE— Jaegers 



1. Middle pair of tailfeathers rounded; wing 13| and culmen over 1J inches 



long Pomarine Jaeger. 



1. Middle pair of tailfeathers acute, wing under 13J and culmen under li 



inches long (2) 



2. Cere more than half as long as culmen; adult with tail about 8 J 



inches long Parasitic Jaeger. 



2. Cere less than half as long as culmen ; adult with tail 1 1 to 1 5 inches 



lon g Long-tailed Jaeger. 



36. Stercorarius pomarinus (Temminck) — Pomarine Jaeger. 



A rare migrant, breeding far north. Aughey saw it once on the 



