WHITE-BROWED WOOD-SWALLOW 295 
a faint twittering from high up in the air and see 
there a flock of small birds alternately soaring and 
working their wings quickly, you may safely conclude 
they are White-browed Wood-swallows on their 
travels. 
At the You Yangs, on October 29th, 191 1, when 
after a dewy night a warm north wind sprang up 
about 9 a.m., veering later to north-west, the skies 
continuing cloudless all day, glass falling, great 
numbers of Wood-swallows kept flying over towards 
the north-west, in the teeth of the wind. A very few 
perched on the plantations near Lara, but the great 
body flew far to westwards. 
Geelong is rather far south for them. They breed 
more freely about Melbourne, and visit the districts 
to the east of the metropolis more frequently than 
they do this part of the country. 
On October 26th, 191 2, I noted for the first time 
a flock of Wood-swallows flying during a south wind. 
They were moving north-west, over Aberdeen Street, 
and had doubtless come down from the interior 
with a north wind which had blown all the preceding 
day. 
The nest is a very slight structure of twigs and 
barely lined with rootlets ; the eggs, numbering two 
or three, can be seen through the nest from beneath. 
In colour this bird has the under surface rich 
vinaceous chestnut, and is easily identified by the 
broad white eyebrow, which is more conspicuous in 
the male* 
