Temporal coordination of duets consists of nonrandom overlap, alternation or association between rhythms of acoustic elements. Since duet coordination presumably requires high attentiveness between signallers, the coalition ...

In temperate regions of the Southern Hemisphere, avian parental care is understudied, in particular for the neotropical family Furnariidae. We measured rates of nest building, mud carrying, incubation, brooding, feeding, ...

The orientation of the nest entrances of 464 nests of the Rufous Hornero Furnarius rufus were explored in relation to vegetation cover along an altitudinal gradient in Argentina. There was no correlation between altitude ...

Hosts of interspecific brood parasites often evolve antiparasitic defences, like the recognition and rejection of parasite's eggs. Most hosts use differences in coloration and maculation to discriminate between their own ...

La radiación solar, los vientos y la cobertura vegetal sobre los nidos pueden influir en las decisiones de las aves acerca de cómo construirlos; por ejemplo, en la orientación de la entrada. En este estudio se examinó la ...

Bird nest orientation is affected by environmental variables determined by their geographical position as well as microclimatic conditions. In closed-cup-nesting species, nests may be oriented to avoid adverse environmental ...

The European Starling (Sturnus vulgaris) was introduced in Argentina by 1987. Starlings are<br />secondary cavity nesters and may constitute a threat to other cavity nesters. We estimated the density of starlings in Buenos ...

Several studies on the social behavior of birds have shown two main benefits of social groups: optimization of foraging and decreasing the risk of predation. We tested whether the association between rufous hornero (Furnarius ...