86 Le Souef, Birds'-cogs from Northern Australia. [is^Oct 



NiNOX BOOBOOK, sub-species OCELLATA (Marbled Owl). 

 Cat. B. Brit. Mus., vol. ii., p. 170. 

 The nest of this Owl was found on ,25th May, in a dead 

 hollow spout of a eucalyptus tree, and the two eggs laid in the 

 decayed wood at the bottom ; they are dull white in colour, 

 shell somewhat coarse and slightly pitted. They measure — 

 (i) 1.66 X 1.26, (2) 1.60 X 1.25 inches, I do not think these 

 eggs have been described before. 



Strix NOV.'E-HOLLANDl^i: (Masked Owl). 



Cat. B. Brit. Mus., vol. ii., p. 303. 

 A single egg of this bird was found on 20th June in a deep 

 hollow in a eucalyptus tree, laid on the decayed wood at the 

 lower end ; it is dull white, finely pitted, and measures 1.79 x 

 1.40 inches. I think that this bird's ^^g is now described for 

 the first time. Another example measures 1.96 x 1.58 inches. 



Strix flammea, sub-species delicatula (Lesser Masked Owl). 

 Cat. B. Brit. Mus., vol. ii., p. 297. 

 Three nests of these beautiful birds were found on ist, 2nd, 

 and 1 8th May; one had two eggs in and. the others one each, 

 and were situated in hollows in eucalyptus trees growing on 

 the river bank ; they are white, slightly glossy, finely pitted, 

 and measure — A, 1.69 x 1.26; B, 1.78 x 1.29; C, (i) 1.58 x 

 1. 16, (2) 1.56 X 1. 16 inches. 



CORVUS CORONOIDES (Crow). 



Cat. B. Brit. Mus., vol. iii., p. 20. 

 It is not difficult as a rule to separate Crows' eggs from those 

 of the Raven {Corone aiistralis), on account of their lighter 

 colour, especially in the extreme north, although, so far, I 

 have received no eggs or skins of Ravens from Northern 

 Australia. The bulky stick nests of these birds are usually 

 lined with fine rootlets, grass, or fine shreds of bark. The same 

 nest is generally used year after year, and as a rule built high up 

 and difficult of access. The ground colour of the eggs is very 

 pale green, speckled with markings of greenish-brown, frequently 

 more numerous on the larger end, but occasionally on the 

 smaller. The markings are much lighter on some eggs than 

 others, and in one clutch the eggs have only a very few pale 

 greenish-brown spots on. They are glossy, and different clutches 

 vary considerably in size. They measure — A, 1.84 x 1.2 1 ; 

 B, (i) 1.58 X 1. 16, (2) 1.55 X 1.9, (3) 1.62 X 1. 16, (4) 1.64 X 1. 18, 

 (5) 1.54 X 1. 16, (6) 1.42 X 1. 14 ; C, 1.57 X 1.16 ; D, 1.57 x 1.14 ; 

 E, 1.62 X I.I 5 inches. The dates on which they were found 

 were nth December, ist May, 8th, 15th, and 17th June. 



Struthidea CINEREA (Grey Jumper). 



Cat. B. Brit. IMus., vol. iii., p. 140. 

 These interesting " family " birds, which, like the Corcorax 

 nielanorJianiphus, construct a mud nest which is common to the 



