Reserva Ecológica Costanera Sur

Sitio realizado por aficionados a la observación de aves desde 10 de enero 2006

Solitary Black Cacique - Cacicus solitarius

Before Procacicus solitarius
Order: Passeriformes (Oscines) - Family: Icteridae
Habitat: Woods
All records since January 2014
Sounds

© José L. Merlo

© José L. Merlo

© José L. Merlo

© José L. Merlo

© Jorge García Vicente

© Cora Rimoldi
© Roberto Ares
© Cora Rimoldi
Adult
Boyero negro/Solitary Black Cacique© J. Simón Tagtachian
All black. Ivory bill
Boyero negro/Solitary Black Cacique
Breeding
The nest
Boyero negro/Solitary Black Cacique© J. Simón Tagtachian
It is a long hanging bag. The access is on top. It is made of vegetal fibers. The female alone builds the nest though the male is very near in vigilant attitude. It takes the female two weeks to finishe the nest.
10-2008 © Carlos Gonzalez Ledo
Boyero nido/Solitary black cacique's nest© Carlos González Ledo
They repeat the nesting site when it is successful. Too many years in a row a pair nested behind the Viamonte Cabin. Another recurrent site is at the antenna. In 2010 three nests very near one another. The left top arrow shows the nest under construction at the moment. Teh other two nests are inactive.
Two consecutive nests at Canal Viamonte
Boyero negro nido/Solitary Black Cacique Nest5 10 08 © Carlos González Ledo Boyero negro nido/Solitary Black Cacique Nest13 10 08 © Carlos González Ledo
Boyero negro nido/Solitary Black Cacique Nest17 10 08 © Carlos González Ledo Boyero negro nido/Solitary Black Cacique Nest2 11 08 © Carlos González Ledo
EThis nest was spotted very near the Cabin at Canal Viamonte. It hung over the canal from the tree branch of the embankment. The construction begins in October and when it was nearly ready a storm or wind broke the branch and fell (in one photo the nest and branch which held it). The female began a new nest which was ready by the first days of November 2008. En 2009 the used the same nesting site.
Boyero negro nido/Solitary Black Cacique Nest4 10 09 © Carlos González Ledo Boyero negro nido/Solitary Black Cacique Nest8 10 09 © Carlos González Ledo
Boyero negro nido/Solitary Black Cacique Nest17 10 08 © Carlos González Ledo

© Carlos González Ledo
Juvenile
Boyero negro/Solitary Black Cacique8-1-17 © J. Simón Tagtachian
Boyero negroJ/Solitary Black CaciqueJ1-2013 © J. Simón Tagtachian
Balk bill base
Diet
Boyero negro/Solitary Black Cacique© J. Simón Tagtachian Boyero negro/Solitary Cacique© Oscar Melo
Boyero negro/Solitary Black cacique© Eduardo Cusano

© Cora Rimoldi
Comiendo fruto de ombú
Boyero negro/Solitary Black CaciqueSee Feeding technique
© Claudia Mon
Differences among black birds
aves conflictivas copy
Pico de plata, Varillero congo, Boyero negro, Varillero ala amarilla, Varillero negro, Tordo pico corto, Tordo renegrido, Frutero negro, Boyerito
More photographic records since January 2013