56 
HORN EXPEDITION—AVES. 
wing Pigeons {Ocypha/'s lophotes). These birds had built tlieir nest, l)ut no eggs 
were found.] 
No. 5. Hieracidea berigora, Vigors and Horsfield. Western Brown Hawk. 
Falco berigora, Vig, and Horsf., Trans. Linn. Soc., Vol. XV., p. 184 (1826). 
Hieracidea occidenfa/is, Gould, Proc. Zool. Soc. (1844), p. 105; id. Bds. 
Austr., fob, Vol. I., pi. 12 (1848); Ramsay, Proc. Linn. Soc. N.S.W., Vol. IT., 
2nd series, p. 166 (1877). 
Hieracidea berigora, Sharpe, Brit. Mus. Cat. Bds., Vol. I., p. 421 (1874); 
North, Nests and Eggs Austr. Bds., p. 21 (1889) ; Stirling and Zietz, Trans. Roy. 
Soc. South Austr., Vol. XVT., p. 156. 
A. ? (not quite adult), Petermann Creek. 
One specimen only, .slightly larger than examples from New South Wales and 
north-western Australia. Centre of the breast and the abdomen pale creamy- 
white ; the remainder of the under-surface sandy rufous, each feather being 
distinctly marked with a narrow brownish shaft-stripe. 
[This Hawk is very widely dispersed throughout Central Australia, being often 
met with where no other birds were seen. They are very fond of lizards, which 
appear to form their chief food. When the pr)rcupine grass was ignited numbers 
of Hawks soon assembled, and, hovering above the smoke, quickly discovered the 
lizards and small animals disturbed l)y the fire, and pounced upon them with 
unerring precision. Although wary, several were shot, when their rich hazel eyes 
at once attracted attention. Their nests were frequently seen in the large trees 
along the watercourses.] 
No. 6. Tinnunculus cenciiroides. Vigors and Horsfield. Nankeen Kestrel. 
Falco cenchroides, Vig. and Horsf., Trans. Linn. Soc., Vol. XV., p. 183 
(1826). 
Tinjiuncuins cenchroides, Gould, Bds. Austr., fob, Vol. I., pb 13 (1818); 
Sturt, Exped. Centr. Austr., Vol. IT., App. p. 14 (1849); Ramsay, Proc. Linn. 
Soc. N.S.W., Vol. I., 2nd series, p. 1096 (1887); North, Nests and Eggs Austr. 
Bds., p. 22, pb iii., fig. 5 (1889). 
Cerchneis ce?ichroides, Sharpe, Brit. Mus. Cat. Bds., Vol. I., p. 431 (1874). 
