CONTRIBUTION TO THE ORNITHOLOGY OF SUDAN. 
575 
Falco cherrug, Gr. 
Falco cherrug, Gr Hardw. Ill. Ind. Zool. II. T. 25 (1833); Reichw., Vög. Afr. L p. 
622 (1900-1901). 
Hierofalco saker (Gii.), Sharpe, Cat. B. Br. Mus. I. p. 417 (1874). 
Falco sacer (Gm.) Butler, Ibis, 1905. p. 362. 
Á single specimen of this Falcon was seen at El-Erediba on 27th of 
January 1911, and was killed by one of the gentleman accompaning us, 
but for want of time it was not prepared for the collection. 
Cerchneis tinnunculus (L.) 
Falco tinnunculus, Linné, Syst. Nat. p. 90 (1758). 
Cerchneis tinnunculo,, (L.) Sharpe. Cat. B. Br. Mus. I. p. 425 (1874). 
Cerchneis tinnunculus (L.) Reichw., Vög. Afr. I. p. 641 (1900 — 1901); Flower, 
Proc. Zool. Soc. 1900. p. 959; Ogilv.-Grant, Ibis, 1902. p. 414; Butler, Ibis, 1908. p. 251. 
Tinnunculus alaudarius (Gm.) Butler, Ibis, 1905. p. 365. 
2 . Chamissa, Dinder, 5. IL 1911. 
cf . Regeiba, Rinder, 26 . XII. 1911 (Count Königsegg). 
The Common Kestrel was abundant wherever we went in the country 
in the winter months. 
Cerchneis Naumanni (Fleisch.) 
Falco Naumanni, Fleisch. Sylv. p. 173 (1818). 
Cerchneis naumanni (Fleisch.) Sharpe, Cat. B. Br. Mus. I. p. 435 (1874); Reichw., 
Vög. Afr. I. p. 644. 
Tinnunculus cerchneis (Naum.) Butler, Ibis, 1905. p. 365. 
d\. Senar, 7. III. 1911. 
Ordo: STRIGIFORMES. 
Fam. STKIGIDAE. 
Pisorhina Königseggi (Mad.) 
Scops königseggi , Mad., Orn. Monatsb. XX. p. 81 (1912). 
cT . Semsir, Finder, 28. I. 1912 (Count Königsegg). Type. 
This species similar to P. Ugandas , Neum. and P. capèrisis (8m.), but 
it differs in having the predominating colour of the underpart of body 
white. Tot. length about 185, wing 126, tail 52, tarsus 24 mm. The first 
primary equal to the eight, second equal to the fourth and fifth, but they are 
shorter then the third, wich ist the longest. 
