128 



mSUS(?) POLIOGASTEE. 



Falco poUociaster Temm. PI. Col. i, 1824, pi. 264 (ex Natterer M. S.). 



Astur poliogaster ViG. Zool. Journ. i, 1824, 338.— Steph. Zool. xiii, pt. 2, 1826,29.— 



Less. Man. i, 1831, 93.— Cuv. Eeg. An. ed. 2, i, 1829, 332.— Gray, Gen. B. i, 1849, 



27.— Steickl. Orn. Syn. i, 1855, 121.— Sharpe, Cat. Ace. B. M. 1874, 120. 

 Msus poliogaster Less. Tr. 1831, 62. — Schl. Mus. P.-B. Astures, 1862, 43 ; Eev. Ace. 



1873, 96. 

 Asturma jioUogasira Kaup, Isis, 1847, 198 ; Coutr. Orn. 1850, 67. — Boxap. Consp. i, 



1850, 30. 

 Cooperastur poliogaster Boxap. Per. et Mag. Zool. 1854, 538. 

 Accipiter poliogaster Gray, Hand List, i, 1869, 33. — Pelz. Orn. Bras. 1871, 8. 



Hah. — Brazil. 



''^ Adult male (type of species): Above dark leaden grey, the ear-coverts 

 and sides of the neck uniform with the crown, which is slightly darker 

 than the back, as also are the wing-coverts ; upper tail-coverts tipped 

 with clear ashy-grey; quills brown, with rufous brown shafts, the sec- 

 ondaries leaden grey like the back ; the quills barred with darker 

 brown, these bars showing more plainly underneath, where the lower 

 surface of the wing is ashy white, inclining to pure white near 

 the base of inner web ; tail black, tipped with whitish and crossed 

 with three narrow bars of clear ashy grey, a little rufescent near 

 the shafts ; entire under surface, including the under tail-currents, 

 pale grey, the throat and under wing-coverts whiter, the shafts darker, 

 showing a hair-like stripe. Total length 17 inches, culmen 0.85, wing 

 9.8, tail 7.8, tarsus 2.15, middle toe L4. {Mns. Liigd.y^ — (Sharpe, I. c.) 



Eegarding this very rare species, of which we have seen no examples, 

 Mr. Garney writes me as follows : — " This species, which Schlegel calls 

 a ' Nisus,'' and Gray a ' Cooperastur\ seemed to me, when I examined 

 it at Ley den in 1869, to be a Leiicopternis. At first sight its appear- 

 ance is a good deal like Micrastur mirandoUei,* but from that si)ecies it 

 is evidently generically distinct. The type-specimen at Leyden is the 

 only one I have seen. The bird figured by Temminck as the young of 

 this species is said by Schlegel to be the young of Cooperastur pileatusJ- 

 {Vide Mus. Pays-Bas, Astures, p. 43.)t 



NISUS(?) PEOTOEALIS. 



Astw pectoralis Boxap. Eev. et Mag. Zool. 1350, 490. — Schl. Mus. P.-B. Astures, 1862, 

 18.— Pelz. Orn. Bras. 1871, 6, 398: Eev. Ace. 187:3, 6:3.— Shap.pe, Cat. Aec. B. 

 M. 1874, 121. 

 Cooperastur pectoralis Boxap. Eev. et Mag. Zool. 1854, 538. 



Accipiter pectoralis Scl. Ibis, iii, 1861, 313, pi. x; Ibis, iv, 1862, 194.— Gray, Hand 

 List, i, 1869, 33.— Scl. &. Salv. Ex. Oru. xi, 1869, 170; Nom. Neotr. 1873, 

 120.— Salyix, Ibis, 1874, 321 (Specimen in Mus. Philad. Acad). 



Hah. — Brazil (Tpenema and Borba ; Natteeer). 



^' Female, 7iot quite adult. — Above brown, with tips of rather paler 

 brown to the feathers of the middle back, scapulars, and secondaries ; 

 the greater part of the wing-coverts, the interscai)ular region, and the 

 lower back, rump, and upper tail-coverts black, with white tips; crown 

 of head crested, pure black ; ear-coverts and sides of neck rich rufous, 

 forming a broad collar round the back of the latter; feathers below the 

 eye and a faintly-indicated moustachial streak black ; throat white, a 



*This resemblance is so very close that we have seen specimens of the Micrastur 

 labeled " M.poliogaster Temm." 



t Notwithstanding Professor Schlegel's conclusion, we judge from Temmiuck's plate 

 that the bird figured is reallj' the young of JV. poliogaster, since it agrees with this 

 species in its stout form, and presents conspicuous points of diiference both in form and 

 coloration from the young of X. pileatus. 



