Order: Passeriformes (Oscines) - Family: Thraupidae Status: Winter visitor. Habitat: Bushland and Grassland

All records since January 2014

Adult female
© Julián Cappuccio Brownish grey. Whitish underparts streaked dark brown. Wings and tail dark brown. Wing coverts edged white. Bill and legs orange © Julián Cappuccio Cinnamon-brown auriculars © Julián Cappuccio Greyish back streaked black. Grey rump. Sergio Cusano It is a winter visitor. Only females and juveniles have been seen at the reserve.

Juvenile
© Claudia Furman

Juvenile male of Mourning Sierra-Finch eating and singing 9-2011 © Roberto Ares This Sierra-Finch lives in Patagonia and along the Andes. During the winter these southern birds move to the north reaching Buenos Aires. It was last seen some years ago. And funny enough, only females have been registered at Costanera. On this occasion a juvenile male visited us. The plumage of this individual is mainly grey and black in the lower belly and lacks the female's typically speckled flanks. The cinnamon colour of the cheeks is darker. This individual has light lines on both sides of the throat, which seems to be getting darker downwards. This is the typical "fresh" plumage of males, in which the black colour becomes even darker as the plumage wears off. Besides, there are black areas on the rest of the face from the bill base to the loral area. Males' bill is yellow in the breeding season, but darker outside this time. This may be because it is still young. And last but not least... it is singing beautifully! This is typical among oscine passerines during the breeding reproduction, perched on a branch and claiming territory! Germán Pugnali

Previous registers
13 4 13 © Milano-Muszkats	17 10 13 © Julián Cappuccio
17 9 11 © J. Simón Tagtachian	18 9 11 © Claudia Furman
8 9 07 © Hugo Hulsberg	12 8 07 © Hugo Hulsberg
9 2005 © Hugo Hulsberg	9 2005 © Alberto Gurni

More photographic records since January 2013