Results 31 to 40 of about 140 (112)

Not as similar as thought: sexual dichromatism in Chimango Caracaras is expressed in the exposed skin but not in the plumage [PDF]

Journal of Ornithology, 2010
Many of the mechanisms involved in visual signalling in birds are based on pigment-based plumage ornamentation and colouration rather than the expression of other, non-plumage-based displays. We have analysed the colouration of the tarsi and ceres of free-ranging Chimango Caracaras Milvago chimango, a controversial morphological trait for this species,
Sarasola, José Hernán, Negro, Juan José, Bechard, Marc J., Lanusse, Agustín   +3 more
openaire   +2 more sources

Biological corridors are crucial habitat features that boost biodiversity in agroecological systems of Argentina

Ecological Solutions and Evidence, Volume 7, Issue 1, January–March 2026.
Our work shows for the first time in the region that biological corridors increase biodiversity and promote interactions between different components of the production system, using a methodology never before used in Argentina such as the Griffon index.
Paula Taraborelli, Micaela Malaspina, Natalia Carrasco, Andrea Scavone, Alejandra López   +4 more
wiley   +1 more source

An assessment on the effectiveness of walk-in traps to capture Chimango caracaras (Milvago chimango) in varied environments

, 2017
En muchos estudios sobre aves rapaces se requiere la captura de los individuos y la selección de la técnica de trampeo más efectiva puede ser crucial para alcanzar los objetivos del estudio. Se evaluó la efectividad de las trampas de tipo “walk-in” para capturar a un ave rapaz neotropical muy común pero pobre- mente estudiada, el Chimango (Milvago ...
Solaro, Claudina, Sarasola, José Hernán   +1 more
openaire   +4 more sources

Long-term directional changes in urban bird communities of Mar del Plata City, Argentina

Frontiers in Ecology and Evolution
Urban environments have been characterized by their temporal stability of resources, which could promote stability in bird composition. Several studies have found that bird communities in urban environments persist over the years, showing a similar ...
Lucas M. Leveau
doaj   +1 more source

Urban Parks Are Related to Functional and Phylogenetic Filtering of Raptor Assemblages in the Austral Pampas, Argentina

Birds
Urban parks are hot spots of bird diversity in cities. However, their role as urban filters for raptor species has not been assessed yet. This study aimed to compare the functional and phylogenetic traits of raptor assemblages in urban parks with the ...
Lucas M. Leveau
doaj   +1 more source

The Effect of Age and Sex on Object Exploration and Manipulative Behavior in a Neotropical Raptor, the Chimango Caracara, Milvago chimango

Ethology, 2013
AbstractWe studied object exploration and manipulative behavior in wild‐caught Chimango Caracaras (Milvago chimango), an opportunistic and generalist raptor species, in relation to age and sex differences. Each bird was presented with six objects. We then recorded the latencies to approach and first contact with the objects, the number of objects ...
Biondi, Laura Marina, Guido, Jorgelina María, Madrid, Enrique Alberto, Bó, Maria Susana, Vassallo, Aldo Iván   +4 more
openaire   +2 more sources

Effects of behavioural types on the problem‐solving performance of wild house mice under controlled and semi‐natural conditions

Oikos, Volume 2025, Issue 4, April 2025.
Animals often face challenges that require them to come up with solutions to novel problems or to find new solutions to existing ones; i.e. they need to innovate. However, not all individuals in a population are equally likely to solve novel problems, and it is unclear which individual characteristics make a successful innovator. Theoretical frameworks
Alexandros Vezyrakis, Anja Guenther, Valeria Mazza   +2 more
wiley   +1 more source

Ectoparasitism in the common chimango caracara Milvago chimango chimango (Vieillot, 1816) (Aves, Falconidae) in the Ñuble Area, Chile

Lundiana: International Journal of Biodiversity, 2005
The ectoparasites of Milvago c. chimango (Vieillot) in the Ñuble area were identified for qualitative and quantitative descriptive analyses. Three species of Phthiraptera were recorded (prevalences between parentheses): One Amblycera, Aquiligogus maculatus (Menoponidae – 100%), and two Ischnocera, Acutifrons vierai chimango (73.9 ± 9.2%) and ...
Julio San-Martín Órdenes, Cristina Brevis Ibáñez, Luis Rubilar Contreras, Ronald Schmäschke, Arwid Daugschies, Daniel González-Acuña   +5 more
openaire   +1 more source

Nest-spacing, not human presence, influences the breeding of Chimango Caracaras(Milvago chimango)in a peri-urban reserve

Emu - Austral Ornithology, 2015
Natural environments have been greatly transformed by human populations and activities and the responses of species to these changes vary. In human-dominated environments, birds may adopt behaviours that enable them to adjust to these novel habitats. We analysed the reproductive ecology of a common and human-tolerant bird of prey, the Chimango Caracara
Solaro, Claudina, Sarasola, José Hernán   +1 more
openaire   +2 more sources

Observations of the Chimango caracara (Milvago chimango) feeding on common lesser toads (Bufo fernandezae)

, 2004
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Alcalde, Leandro, Rosset, Sergio D
openaire   +2 more sources