11(5 



ZOOLOGY 



]_. First primary not more than i 

 length of second ; length less 

 than 20 centimetres, 

 /i. Bill as long as head ; wings 



longer than tail 



./_' Hill much shorter than head ; 



wings about as long as tail 



PZ- First primary more than 1 length 



of second; length more than 



20 centimetres 



/: Nostrils exposed or merely overhung 



by feathers. 

 ('i. Bill notched near tip. 



J\. Tail longer than wings ; gen- 

 eral color gray or ashy 

 brown. 



f/i. Bill very stout and deeply 

 notched and hooked ; 

 bird over 17 centi- 

 metres 



f/-j. Bill neither stout, 

 notched, nor hooked ; 

 bird over 17 centimetres 

 </ 5 . Bill very slender ; bird 

 under 17 centimetres . 

 /j. Tail shorter than wings ; gen- 

 eral color olivaceous . 

 ('%. Bill not notched. 



J\. Rictus with bristles. 



i/ 1. Quills not barred ; length 

 over 20 centimetres . 

 (1-2.. Wing and tail barred ; 

 length under 18 cen- 

 timetres 



./> Rictus without bristles 



Firsf primary about as long as second ; the 



real lirst rudimentary, leaving apparently 9. 



Cj. Bill triangular, depressed, as wide at base 



as long ; gape twice as long as culmen 



c 2 . Bill stout, conic, with convex outlines, 



Par id a:, 



Corrida: 



Lioiiidce 



Tnrdido: 



Tvoglodytidw 



Cei'tli iidf.c 



Hird in idie 



