98 BIRDS. 



3. E. minimus, Baird. LEAST FLYCATCHER. Olive 

 gray; bill blackish below; wings like preceding, but 

 longest primary but ^ inch longer than secondaries; 

 middle toe half as long as tarsus; bill less than -J inch; 

 L. 5; W. 2i; T. 2. E. N. Am., abundant. 



4. E. flaviventris, Baird. YELLOW-BELLIED FLY- 

 CATCHER. Clear olive green; yellow below, becoming 

 bright yellow (not merely yellowish as in the others) on 

 the belly; first primary about equal to sixth; feet as in 

 acadicus; bill yellow below; L. 6J; W. 2f; T. 2. 

 E. U. S. 



OEDEE H.-PICAELE. 



(Piearian Birds.') 



Hind toe small, sometimes wanting, occasionally ele- 

 vated ; its claw shorter than that of middle toe (with rare 

 exceptions); 3d and 4th toes often with less than the 

 normal number of joints; 2d and 4th toes sometimes 

 versatile. Wing coverts larger and in more numerous 

 series than in the Passeres. Primaries 10, first rarely 

 short; tail feathers 10 (8 to 12). Musical apparatus 

 imperfect. Sternum non-passerine. Tarsus never oscine. 

 Nature altricial. A highly diversified group, the mem- 

 bers of which have little in common except their want 

 of resemblance to other birds. 



FAMILY XXXVIL CAPRIMULGID^E. 



(The Goatsuckers.) 



Bill very short, " fissirostral," the gape exceedingly 

 deep and wide, reaching to below the eyes, and usually 

 with prominent rictal bristles. Wings long and pointed; 

 secondaries lengthened. Plumage long and loose, owl- 

 like. Tail feathers 10. Feet very small; tarsus short, 



