KKV TO TIII-: i;n:i)s OF KASTF.UN NOKTH A.MKKICA. 



Group 5. Wing, 15 to 17 inches long. 



Section 1. Second primary, longest; only first primary, 



emarginate, or notched. 



Duck Hawk. 



gth, under !!) primaries. dark lirowii. banded on inner \vel> with pale rufous. 



Duck Hawk. 



/,<') i/rin us <ii/<i/inn. 

 See No. -JUl. 



L'lll. "VT 1!l; undT l.'lil C(. \cTl-, \vllilC, \\illinul Sp()t3. 



White Gyrfalcon. 



/'iili-n ix/mnliis, dm! rufi'x. 



SIT N... 2SG. 

 I i-iiu r lli, over V.i ; under tail covert-, marked \\ itli dusky or spotted. 



Gray Gyrfalcon. 



See No. 287. 



