KKY T(1 FAMILIES. 



WATER lUKDS. 



21 



GROUP 5. 



Toes, three, full webbed ; no hind toe. 



Nostrils, separate, not opeuini>- iuto one (loiihle-harrelled tube; upper mandible, curved 



near tip; bill, yellowish, or greenish yellow; an indication of a hind toe, in tbe toiin of a 



•Tfi^, small knob without nail; tail, entirely white, or 



^-af ' white with biaek band near tip. This is the only 



^^— =-' "* North American <i-ull laekitiii- a hind toe. 



-■.:iS^ Family LARID/C (Lnrus tridncti/lrr). 



£t^^^^«.^ :f^ Kittiwake Gull. 



See page 3(i. 



Bill, reddish (in life showina; also yellow and blue), 

 peculiar in form, suggesting that of parrot. 

 Family ALCID-^. 

 Subfamily FRATERCULIN^. Puffins. 



See page 30. 



liill. black, with narrow white l)and. 

 Family ALCID.C 

 Subfamily ALCIN^. Auks. 



See page .SO. 



Bill, black or brownish ; wing, 

 over 7.2.5 inches long, carpus (bend 

 of wing) to tip. 



Family ALCID/E. 

 Subfamily ALCIN/E. 

 Murres. 

 See page 30. 



Bill, black, or blackish: wing, less than 7.2.5, but more than .5. .50, measured, carpus to tip. 

 Family ALCID/E. Subfamily PHALARIN/E. Guillemots. 



See page 30. 



