XIV 



BIRDS OF EASTERN NOUTH AMERICA. 



Under Primary 



Under Wing Coffrtt 



Carpue ( _ 



Primaries 



P>T^-) -AfiUara or Axillary Plume* 



Tail Covrrtt or Crisnim 



I'pper MandMi' ores '.Cra&n 

 \ ! Forehead''.^, 



.Auricula or Ear Coverts 



If ing of Duck showing speculum. 



Lower Mandible . 



~-.Valar ftei/iun or Cltceh 

 .s'i,/e of JVeck Rack 



Carpal Joint *~ 

 Letter Wing Coverts ' 

 Middle Wing Covertt " 



Or eater Covertt 



Upper Tail Coverti 

 Tail Feather 



\Undtr Tail Covertf 

 or Crittum. 



Unyuit 

 r A'ait 



Bill of Fulmar Petrel. Outerj'oe \ 



Middle Toe - 



Inntr Toe 



Black - breast P/over. 



-Hind 2'<M 



TOPOGRAPHY OF A PLOVER 



