KKV TO FAMILIES. — AVATER BIRDS. 



21 



GROUP 5. 



Toes, three, full webbed ; no hind toe. 



r^~ 



Nostrils, pcpiii.'ttc, not opciiiiii;' into oiit^ (louhle-harrellcd liit)e; upper mandible, oiirvtd 

 uear tip; bill, yellowish, or ijrcenisli yellow: an indication of a hind toe, in the Idnn of a 

 small knob without nail; tail, entiicly white, or 

 white with ])laek l)aiul near tip. This is the only 

 North American jiMill laekiiiii' a hind toe. 



Family LARID/C {Larns IridarUjln^. 

 Kittiwake Gull. 

 See page .SO. 



•^ Bill, reddish (in life showin<; also yellow and Itlue), 



peculiar in fnrni, -;u<;i;c~tini;' that of parrot. 

 Family ALCID/E. 

 Subfamily FRATERCULIN/E. Puffins. 



See Jiage 'M. 



C^ 



Bill, black, with narrow white I)aMil. 

 Family ALCID/E. 

 Subfamily ALCIN^. Auks. 



See page 30. 



Bill, black or I)rownish ; wing, 

 over T.'i") inches long, carpus (l»end 

 of w ini; ' t<» tip. 



Family ALCID/E. 

 Subfamily ALCIN/C. 

 Murres. 

 See page ;{(). 



\ I 



Bil 



^^i. 



black, i.r blackish; wing, b's- lli.in 7.2r). Inii nmrr than .")..">0, measured, cari>us ti> lip. 

 Family ALCID/1;. Subfamily PH Al.ARIN.-E. (iulllemots. 



Sec page ;{(). 



