Nest.—A slight hollow in the marshy ground in which the two brownish eggs are laid (2.15 × 1.65).
Range.—Northern part of North America, south in winter to southern California, breeding in the Arctic regions.
LONG-TAILED JAEGER.
38. Stercorarius longicaudus. 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 (2.10 × 1.50).
Range.—Arctic America; south in winter to South America.
