406 , FILCONID^. 



Falco eleonorae, Hmigl. Syst. Uebers. p. 9 (185G, iiec Geni). 



Falco horus, Heuyl. Syst. Uebers. p. 9 (1856). 



Falco cyanostolos, A. Brehm, Nmtm. 185G, p. 234. 



Falco gracilis, A. Brehm, Kanm. 1856, p. 2o2. 



Hypotriorcbis horus, Heugl. Ibis, 1800, p. 409. 



^salon ai-dosiacus, Brehm, Eds. Habesch. p. 207 (1863, teste HeugKti). 



Adult male. Uniform leaden grey, with black shaft-stripes to the 

 feathers ; quills dark brown, with whitish bands on the inner web, 

 the secondaries leaden grey like the back ; tail leaden grey above, 

 much paler beneath, with obsolete whitish bars on the inner webs ; 

 cere and orbits bright orange-yellow ; biU dark leaden blue, j'el- 

 lowish at the base ; feet bright yellow ; iris umber-brown. Total 

 length 12-5 inches, culmen 0-9, wing 10-4, tail 5-4, tarsus 1-35, 

 middle toe 1-35. 



Female. Similar to the male, but slightly larger. Total length 

 13 inches, culmen 0-95, wing 11-2, tail 6, tarsus 1-4, middle toe 1-3. 



Ohs. Very old examples become leaden black. Birds not fuUy 

 adult have remains of bars on the inner web of the tail-feathers, 

 with often some remains of rufoiis on the breast. 



Young male. Above slaty grey, the wing-coverts and sides of 

 face darker, the feathers of the lower back and upper tail-coverts 

 tipped with dull white, the nape tinged with huffy white ; quills 

 black above, greyish black below, the secondaries slaty grey like the 

 back, tipped with whitish : tail slaty grey, tipped with creamy white, 

 the inner web with eight or nine notches of pale rufous white ; 

 throat and sides of face and of neck pale rufous buff; ear-coverts, 

 feathers under the eye, and moustachial streak slaty black ; rest of 

 under surface ochraceous buff, with slaty grey centres to the feathers, 

 producing a more or less striped appearance, except on the sides of 

 the upper breast, which are almost uniform slaty grey ; under wing- 

 coverts dull slaty, the lower ones barred with pale rufous, those along 

 the carpal joint margined with dull ochre. Total length 11-5 inches, 

 wing 10-2, tarsus 1-3. {AIus. Lugd.) 



Hah. The coast of Eastern Africa, from the Red Sea to Mada- 

 gascar, in rocky localities. 

 a. (S ad. Efat (Harris). Secretary of State for India. 



26. Falco regulus. 



Le Faucon de Eoche, ou Rochier, Briss. Orn. i. p. 349 (1760). 

 L'EmeriUon, Briss. Orn. i. p. 382 (1760) ; Buf. PI. Hnl. i. pi. 468 



(1770) ; Schl. ^- Verst. Traite Fane. pi. ix. (1853). 

 Le Rochier, Buff. PL Enl. i. pi. 447 (1770). 

 Falco reguhis. Pull. Eeis. Buss. Reichs. ii. Anhang, p. 707 (1773) ; 



Grn. S. JV. i. p. 285 (1788). 

 Falco lithofalco, Gm. S. N. i. p. 278 (1788) ; i?owa, Orn. Frov. p. 53 



(1825) ; Less. Traite, p. 94 (1831) ; Brehm, Voy. DeutscM. p. 67 



(1831) ; Kaup, Mus. Senclcenb. iii. p. 258 (1845) ; Kjarb. Orn. 



Dan. Afb. iii. tig. 2 (1851) ; Degl. SfGei-be, Orn. Eur. i. p. 91 (1867); 



Salvad. Faun. Ital. Ucc. p. 21 (1871). 

 Falco ffisalon, Gtn. S. N. i. p. 284 (1788) ; Temm. Man. i. p. 27 



(1820) ; Naum. Vog. Beutschl. i. p. 303, Taf. 27 (1822) ; Werner, 



