3G4 FALCONIDJ!. 



70. ICTINIA. ^yp^ 



Ictinia, Vieill. Analyse, p. 24 (1816) I. plumbea. 



Nertus, Bote, Isis, 1828, p. 314 I. plumbea. 



Pcecilopteryx, Kaup, Mus. Senckenb. iii. p. 258 (1845). . I. plumbea. 



Bill of Ictinia plumbea. 



Range. Southern States of North America; Central America; 

 Columbia ; Guiana ; Amazonia ; Brazil. 



Key to the Species. 



a. Secondaries leaden black, like rest of upper 



surface plumbea, p. 364. 



b. Secondaries silvery grey, in strong contrast to 



rest of upper surface mississipiensis, p. 365. 



1. Ictinia plumbea. 



Spotted-tailed Hobby, Lath. Gen. Syn. i. p. 106 (1781). 



Falco plumbeus, Gm. S. N. i. p. 283 (1788) ; Temm. PI. Col. i. 



pi. 180 (1823) ; Spiix, Av. Bras. i. pi. 86 (1824) ; Max. Beitr. 



Naturg. Bras. iii. p. 126 (1830). 

 Alcon azulezo, Azara, Apunt. i. p. 167 (1802) ; Hartl. Ind. Azara, 



p. 3 (1847). 

 Milvus cenchris, Vieill. Ois. d'Amer. Sept. p. 38, pi. 10 bis (1807). 

 Ictinia plumbea, Vieill. N. Diet. xvi. p. 76 (1817) ; D'Orb. Voy. Am. 



Mer., Ois. p. 101 (1835) ; Gray, Gen. B. i. p. 26, pi. 9. fig. 1 



(1845); Tschudi, Faun. Peruan., Voy. p. 112 (1845); Cab. in 



Schomb. Reis. Guian. iii. p. 735 (1848) ; Bp. Consp. i. p. 22 



(1850) ; Strickl. Orn. Syn. p. 140 ' (1855) ; Burtn. Th. Bras. ii. 



p. 104 (1856) ; Schl. Mm. P.-B. Milvi, p. 10 (1862) ; Leot. Ois. 



Trinid. p. 142 (1866) ; Gray, Hand-l. B. i. p. 27 (1869) ; Pelz. 



Orn. Bras. pp. 6, 398 (1871) ; Scl. ^ Salv. Nomencl. p. 122 (1873). 

 Nertus plumbeus, Boie, Isis, 1828, p. 314. 

 Buteo plumbeus, Cuv. Rhjne An. i. p. 337 (1829). 

 Pcecilopteryx plumbea, Kaup, 3Ius. Senckenb. iii. p. 258 (1845). 



Adult. Above leaden black, the tail included, the latter with 

 three bars of white (one concealed by the under tail-coverts) on the 

 under surface ; wing-coverts leaden black, a little darker than the 

 back ; primaries rufous, leaden grey along the outer margin and at 

 the tip ; head paler and more slaty grey, the ear-coverts a little 

 darker ; feathers round the eye blackish ; entire under surface slaty 

 grey, the throat paler, and the under wing-coverts and axillaries 

 darker. Total length 14 inches, culmen 0-9, wing 12-6, tail 6, 

 tarsus 1-5. 



