KEY TO FAMILIES. 



53 



Family 8. HirundinidcB. — Swallows (Fig. 49) 

 Bill short and flattened, much wider 

 than high at the base ; no bristles at 

 the base of the bill ; wings long and 

 pointed, tips, when closed, generally- 

 reaching beyond the end of the tail ; 

 flrst primary the longest ; outer tail- 

 feathers longest; feet small, tarsus 

 short, round in front, narrower and 

 sharper in the back, p. 318. 



Fig. 49. 



Family 9. Ampelidoi. — Waxwings 

 (Fig. 50). 

 Plumage generally soft, brownish 

 gray or grayish brown \ a black 

 band across the forehead and 

 through the eyes ; tail tipped 

 with yellow; bill short, notched 

 at the tip; head conspicuously 

 crested, p. 323. 



Fig. 50. 



^v 



\ 



^ 



Family 10. Laniidce. — Shrikes (Fig. 51). 



Grayish birds, 8-00-9-00 in length, most of the 

 tail-feathers tipped with white; bill hooked and 

 hawklike, p. 325. 



Family 11. Vireonidce. — Vireos (Fig. 52). 



Small birds, 5-00- 



7'00 in length, with 



'W generally olive- 



~ ^~^\ green backs ; tail- 



y„ --^^ feathers without 



/^ 7 white spots; bill 



Fig. 52. rather stout, higher 



than broad at the 



base, the tip of the upper mandible 



notched and hooked, bristles at the 



base of the bill barely evident ; tarsi 



scaled, round in front, narrower and 



sharper behind ; toes united at the 



base, p. 327. 



Family 12. MniofiUidce.— Wood War- 

 blers (Fig. 53). 

 Small birds, length generally under 

 6'00, but in four species 6-50-7"50, 

 with, as a rule, brightly colored 



