SPECIES

Chilean Mockingbird Mimus thenca Scientific name definitions

Natacha González, Vicente Pantoja, Maria Jesus S. Mallea, Matías Garrido, Antoine Touret, Angélica Almónacid, Heraldo V. Norambuena, and Fernando Medrano
Version: 2.0 — Published March 3, 2023

Sounds and Vocal Behavior

Vocalizations

Development

Information needed.

Vocal Array

Song. The song is a series of repeated, sweet, variable notes and phrases interspersed with more gruff or guttural chuck sounds (4). One of the main syllables includes clipped, gruff, galloping (chu ch-tu-tuk or k-tok k-tok; 28). It is an excellent mimic of other bird species.

Calls. Raspy notes in aggressive interactions (keeeck-keeeck; 30).

Geographic Variation

Information needed.

Phenology

No formal analysis has been conducted, but based on recordings available from Macaulay Library, birds sing across the whole year.

Daily Pattern of Vocalizing

Information needed, but based on recordings available from Macaulay Library, birds seem to be active throughout the day. However, further information is needed to understand if there is a peak in the vocal activity.

Places of Vocalizing

Usually vocalizes from perches including trees, wires, or poles (N. González, personal observation).

Sex Differences

Information needed.

Repertoire and Delivery of Songs

It sings an average of 17.8 songs/min (61). The total repertoire has not been quantified, but there are a large number of syllable types, with an average 50.2 syllable types per 3 min song sample (61). Songs last an average of 1.561 s, with individual syllables averaging 0.066 s (61). There is an average 2.315 syllable types per song, with syllables repeated an average of 1.331 times before switching (61).

Social Context and Presumed Functions of Vocalizations

Information needed.

Nonvocal Sounds

None known with communicative function.

Recommended Citation

González, N., V. Pantoja, M. J. S. Mallea, M. Garrido, A. Touret, A. Almónacid, H. V. Norambuena, and F. Medrano (2023). Chilean Mockingbird (Mimus thenca), version 2.0. In Birds of the World (N. D. Sly, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.chimoc1.02