MASKED WOOD-SWALLOW 293 
jet-black in strong contrast with the light bluish grey 
of its general plumage. 
The nest is a frail, small structure of very light 
twigs, lined with a few rootlets ; it is placed (in other 
districts) at varying heights from the ground. The 
eggs are two or three, heavily blotched all over with 
brownish markings. 
On October 6th, 191 2, I saw a solitary individual 
of this species perched on a fence at Bream Creek. 
This was early in the season for Wood-swallows, and 
the only occasion on which I have seen one of these 
birds by itself. 
On October 29th, 191 1, at the You Yangs, a flock 
of Wood-swallows flew over, of which the great 
majority, nearly forty, were of this species. 
The under surface is beautiful bluish grey, with 
which strongly contrasts the jet-black face and 
throat in the male bird ; the female has these lighter. 
WHITE-BROWED WOOD-SWALLOW 
Campbellornis superciliosus superciliosus 
At rare intervals, not oftener, I think, than once in 
ten years on an average, the Wood-swallows come 
to Geelong in swarms about the end of October, 
borne down to us from the interior of the continent 
on the wings of the north wind. And even when 
there is such a visitation, not all the birds remain to 
breed. In the year 1891, for instance, they descended 
