1873.] 



OF THE ETHIOPIAN REGION. 



587 



in C. canorus the bill is for the most part blackish, in C. gularis it 

 is yellow, only becoming black along the ridge and at the tip : thus 

 the birds may always be separated by the nostrils, which are 

 coloured according to the bill in the respective species, being yellow 

 in C. gularis and black in C. canorus. Another difference exists in 

 the tail ; for owing to the great amount of white on tbat of C. gularis 

 and to its forming bars on the outer feather, a very distinct band is 

 observed across the tip of the tail, which is not visible in C. canorus. 

 The accompanying woodcut exhibits the difference in the outer tail- 

 feathers of the two Cuckoos, and shows the bar in C. gularis, which 

 is found on all the other feathers. 



Fie. 2. 



Fig. 3. 



Fig. 2. Outer tail-feather of C. canorus. 

 Fig. 3. Outer tail-feather of C. gularis. 



7. CUCULUS CLAMOSUS. 



Le Coucou criard, Levaill. Ois. d'Afr. v. pis. 204, 205 ; Sundev. 

 Crit. om Levaill. p. 47 (1858). 



Noisy Cuckoo, Lath. Gen. Syn. Suppl. ii. p. 136 (1801). 



Cuculus clamosus, Lath. Ind. Orn. Suppl. p. xxx (1801) ; Steph. 

 Gen.Zool.ix.pt. l,p. 108/1815); Cuv. Regne An. i. p. 425 (1817); 

 Vieill. N. Diet. viii. p. 226 (1817); Less. Traite, p. 147 (1831); 

 Bp. Consp. i. p. 103 (1850) ; Des Murs in Lefebvre, Voy. Abyss. 

 Zool. p. 137 (1847) ; Hartl. J. f. O. 1854, p. 416 ; id. J. f. O. 1861, 

 p. 265 ; Cab. & Heine, Mus. Hein. Th. iv. p. 43 (1862) ; Schl. Mus. 

 P. B. Cuculi, p. 16 (1864) ; Anderss. P. Z. S. 1864, p. 3; Lavard, 

 B. S. Afr. p. 249 (1867) ; Bocage, Jorn. Lisb. ii. p. 46 (1868) ; 

 Chapm. Trav. S. Afr. ii. p. 408 (1868) ; Cray, Hand-1. B. ii. p. 215 

 (1870); Heugl. Orn. N. O. Afr. i. p. 784(1871); Anderss. B. Dam. 

 Ld. ed. Gurney, p. 226 (1872). 



