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THE WILSON JOURNAL OF ORNITHOLOGY • Vol. 123, No. 4. December 2011 
nesl. Photograph by tlcaded Berr y ea ter {Carpomis melanocephala ) viewed from below. The arrow indicates it 
S, 39 20 25 W, 785 m asl) on the property of the 
Instuuto de Estudos Socioambientais do Sul da 
Bahia IIESB). Arataca municipality, Bahia State 
Brazil. A pair of Black-headed Berryealers was 
observed constantly active in a limited area 
between I and 2 September 2006. We identified 
he two birds as a male and a female, paired, and 
assumed they might have had an active nest nearby. 
We followed them as closely as possible, choosing 
as main targets the points at which the male 
perched to sing. We observed the male singing 
at several pomts. and a nest-like structure wat 
mally detected ~2 m from one of these points 
We focused attention at that structure which 
proved to be an active nest of C. melanocephala. 
Two Observers performed -2 hrs of focal obser¬ 
vations of the nest from concealment >15 m from 
The nest and egg were collected for deposition 
•n the ornithological collection of the Museu de 
clmi mS e . Te "’ olo « ia da Pontificia Univcrsidade 
Catolica do R,o Grande do Sul ,MCP) N C s, 
height above the ground was measured with a S-m 
ape measure, from Ihe upper border of the nts. £ 
Measurements of the nes, and gg 
Ca^d cl r C n ahPerS ,ht ’ 0.1 nurn 
in the egg d^CTi Df , and rcslx ' clivc numbers 
Sfe nption foJiow Smithe (1975). 
RESULTS 
On 2 September 2006. after ~3 hrs of 
observations, we saw the female flying and 
perching in a structure that initially resembled a 
pile of aerial leaf litter (Fig. 1). We realized the 
structure was actually a nest only after the female 
remained perched at the site. A pair of Black¬ 
headed Berryeaters was constantly present during 
our observations of the nest site. Only the female 
incubated the sole egg. while the male remained 
in the immediate vicinity and once perched on the 
nest, apparently inspecting the egg. 
The nest was inside a 20-25 m tall primal) 
evergreen forest. It was on a 6-m tall tree with a 
diameter at breast height of 0.1 m. The tree was 
isolated from direct contact with other trees- 
partially because of wood coppicing. The nest "as 
4.2 m above the ground in a fork 0.35 m from the 
main tree trunk. It was supported laterally by ' he 
two fork stems (diam = 10.8 and 12.8 mail-and 
also by a smaller stem (8.9 mm in diam' that 
projected from one of the main stems and formed 
a smaller, second fork. The nest was primarily 
supported by a bromeliad leaf, 43.4 mm in w> J th. 
curved at an angle of 70 : below the two fork-'' 
providing support for most of the nest structure- 
The nest had an external diameter of 11 ^ 
99.5 mm and an external height of 109.7 mm. The 
