SHORT COMMUNICATIONS 
167 
HG. I. (A) Shiny Cowbird egg oil the left. Cinereous Warbling Finch egg on the right; (B) nest with these two eggs 
measured on 25 October 2010; (C) nest with three Cinereous Warbling Finch eggs plus one Shiny Cowbird egg on 24 
October 2010; (D) nest supported by Australian pine branches. 
RESULTS 
We observed nest construction activity by 
(inereous Warbling Finches on 17 October 
2010. The nest (Fig. I) was under construction 
and both male and female were seen building the 
nest, although another female member of the flock 
sta yed with the pair passively until the first egg 
"as laid. 
The nest was I m from a paved street adjacent 
'o the Park at 1,179 m asl (19 57' S. 43 55' W). 
rite nest was not a completely symmetric cup 
<Rg. IB). It was supported by three branches in a 
lo rk of an Australian pine (Casuarina equiselifo- 
ltQ ) which had a total height of 4-5 m, was forked 
cut front the ground, and had a shrub-like 
appearance. 
The dimensions of the nest were: external 
diameter at the largest axis = 78.9 mm. external 
diameter at the smallest axis = 70.4 mm. internal 
diameter at the largest axis = 61.0 mm. internal 
diameter at the smallest axis = 59.6 mm. external 
height = 47.4 mm, and depth = 41.2 mm. The 
distance from the ground was 2.97 m. The nest 
consisted of fragments of dried rachis and pedun¬ 
cles from grass spikes (Poaceae) with small roots 
and twigs (max diam - 0.9 mm). Several Poaceae 
peduncles (6—16 cm) protruded from the nest. 
The nest appeared to be complete on 19 
October 2010. The first egg was laid on 22 
October 2010 and on the following day three eggs 
were present (including 1 Shiny Cowbird \MoIo- 
ilints honariensis] egg): lour eggs were present on 
the next day (Fig. 1C). 
We photographed all three eggs of Cinereous 
Warbling Finch in situ. The eggs were light-cream 
in color and had irregular reddish-brown spots 
concentrated in the rhomb pole resembling a 
crown. The only egg of Cinereous Warbling Finch 
measured (Fig. 1A) weighed 2.2 g and was 
19.7 mm in length and 14.9 mm in width. The 
volume, calculated with the equation of Hoyt 
(1979), was 2.230 mm 3 . 
