PARASITIC JAEGER. 
37. Stcrcorarius parasiticus. 17 inches. 
This bird has the two phases of color similar to the last. 
The two central tail-feathers are longer and more pointed, pro¬ 
jecting about four inches beyond the others. All of the 
Jaegers have grayish blue legs with black feet, and brown 
eyes. 
Nest. —A slight hollow in the marshy ground in which the 
two brownish eggs are laid (2.15x1.65). 
Range. —Northern part of North America, south in winter 
to southern California, breeding in the Arctic regions. 
LONG-TAILED JAEGER. 
38. Stcrcorarius longicau-dus. 20 inches. 
This is the most swift and graceful of this family in flight. 
Similar to the last species, but the central pointed tail-feathers 
extend eight or ten inches beyond the others. It is more 
often found in the lighter phase. 
Nest. —Their eggs are either laid on the bare ground or in 
a slight depression, scantily lined with grass (2.10x1.50). 
Range. —Arctic America; south in winter to South America. 
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