86 LONG-WINGED SWIMMERS. 



pointed, flgs. 55-56. Two phases of plumage: 

 Light phase; top of head and above dusky, 

 sides of head and below white. Dark phase, 



Fig- 55. 



Pomarine Jaeger in autumn. 1-5. 



uniform dusky and all intergrades occur be- 

 tween the two phases. Young, banded below 

 with buff. Breeds far north. Migrates south 

 from Aug to Oct; winters far south; north in 

 May. 



55. PARASITIC JAEGER. 

 Similar, smaller, 20, projecting tail feath- 



