22. A8TUR. 123 



Accipiter griseo^ularis, If 'all. P. Z. S. 186-5, p. 474 ; id. Ibis, 1868, 



p. 9; Gray, lland-l. B. i. p. 34 (1869). 

 Erytlirospiza griseogularis, Kanp, P. Z. S. 1867, p. 174. 

 Nisiis griseigularis, Giebcl, Thes. Orn. p. 263 (1872). 



Young male. Above dark browu with rufous edgings to the feathers, 

 the head blacker, the nape and hind neck much mottled with white, 

 and the bases to the interscapular feathers, as well as the scapulars 

 and secondaries, conspicuously white ; quills and tail brown, paler 

 at the tips, with numerous bars of darker brown, about twelve or 

 thirteen in number on the latter, the bars much paler on the under 

 surface of both, which is whitish ashy, washed with pale rufous near 

 the base ; sides of face and a distinct eyebrow white, streaked with 

 blackish brown, the ear-coverts clouded with ashy brown ; under 

 surface of body whitish, with a streak of sepia-brown down the 

 centre of the throat, the chest marked with oval drops of sepia-brown, 

 the breast barred with brown, slightly tinged with rufous ; thighs 

 whitish, broadly barred with pale rufous ; under tail-covcrts white, 

 sparingly barred with dark brown ; under wing-coverts fulvous, with 

 dark brown cross bars, somewhat tinged with rufous. Total length 

 18 inches, tail 8-8, tarsus 2'75. 



Adult female. Above ashy grey, the head much lighter, especially 

 the sides of the face and throat, which are pale bluish grey ; sides 

 and hinder part of the neck, including the interscapiilary region, 

 light vinous chestnut ; wings blackish slate-colour, uniform pale 

 ashy underneath, without any bars ; tail ashy brown, clearer brown 

 on the inner web, with very faint indications of darker brown bars, 

 underneath uniform pale ashy, without cross bars ; under surface of 

 body clear vinous red, the chest uniform, the rest of the body with 

 faint indications of whitish cross bars ; under wing-coverts imiform 

 with the breast ; cere yellowish ; bill black, lead-colour at base ; feet 

 olive or ochre-yellow. Total length 19 inches, culmen 1-6, wing 

 10-5, tail 9, tarsus 2-85. 



Adult male. Similar to the female, but smaller. Total length 

 17 inches, culmen 1-5, wing 9-9, tail 8-25, tarsus 2-5. 



Ohs. The beautiful series of this species brought home by Mr. 

 "Wallace enables us to see how the different changes from the young 

 plumage to the old are brought about. In the first stage the young 

 bird resembles other Goshawks, being streaked on the chest, barred 

 on the breast ; but in its changes it closelj- follows the example of the 

 small Micronisi, of which this group of Hawks seem to be distant 

 relations. Both above and below the plumage is changed partially 

 by a moult and partially by an absolute change of feather. Many 

 new plumes appear on the breast, showing that the next dress will 

 be of a vinous red colour with whitish cross bars. At the same time 

 it appears that, after the manner of Sparrowhawks and Goshawks, 

 some of the oval drops on the chest break up into bars, which are 

 darker and not of so clear a rufous colour as the fresh-moulted feathers. 

 "While these changes take place below, a slight shade of vinous 

 begins to appear on the hind neck, which, however, never shows very 

 clearly till the bird is quite old : and as this character increases in 



