130 



KEY TO FAMILIES 



Family 8. Hirundinida. SWALLOWS (Fig. 66). 

 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; 

 first primary the longest; outer tail- 

 feathers longest; feet small, tarsus short, 

 round in front, narrower and sharper 

 in the back, p. 415. 



FIG. 66. 



FIG. 68. 



Family 9. Bombycillidce. WAX- 

 WINGS (Fig. 67). 



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. 420. 



FIG. 67. 



Family 10. Laniida. SHKIKES (Fig. 68). 



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

 tail-feathers tipped with white; bill hooked and J r,^ 



hawklike, p. 422. >^ 



' 



Family 11. Vireondice. VIREOS (Fig. 69). 



Small birds, 5'00-7'00 in length, with generally olive-green backs; tail- 



feathers without white spo f s; bill rather 

 stout, higher than broad n/ the bas^, 

 the tip of the upper 

 mandible notched and 

 hooked, bristles at the 

 base of the bill barely 

 evident; tarsi scaled, 

 round in front, nar- 

 rower and sharper 

 behind ; toes united at 

 the base, p. 424. FIG. G9. 



Family 12. Mniotiltidce. V/OOD WAR- 



BLERS (Fig. 70). 



Small birds, length generally under 

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

 with, as a rule, brightly colored jjkim- 

 age, olive-green or yellow being the 

 most frequent; bill various, never 

 notched at the tip, usually slender and 

 sharply pointed, without conspicuous 

 bristles, but sometimes flattened and 

 broader than high at the base, when 

 the bristles are evident (thus resem- 

 bling the bill of a true Flycatcher, but 

 the back of the tarsus is always thin 



