Collared Crescentchest Melanopareia torquata

  • Order: Passeriformes
  • Family: Melanopareiidae
  • Polytypic: 3 subspecies
  • Authors: Jacob Drucker
Sections

Breeding

Very little is known about the breeding biology of Collared Crescentchest, other than observations by Gressler and Marini (2007) and Kanegae et al. (2010a). The nest is globular, with a side entrance, and placed near the ground, such as inside a tussock of grass. The nest is composed of woven dry grass, mixed with a leaves from trees or shrubs. The entrance to one nest was 4.2 cm (width) x 3.7 cm (height); this nest itself had dimensions of 13.5 cm (height) x 10.0 cm (width) x 10.5 cm (length).

The clutch is two; the eggs are ovoid, greenish blue and unspotted. Egg dimensions (mean; n = 2, Kanegae et al. 2010a) are 19.05 x 14.95 mm, with mean mass of 1.55 g. The incubation period is estimated as 15-18 days (Gressler and Marini 2007) or as 12-16 days (Kanegae et al. 2010a), and the nestling period is 12-14 days (Kanegae et al. 2010a). Both sexes contribute to incubation and to care and provisioning of the nestlings. Male Collared Crescentchest have a brood patch (Kanegae et al. 2010b).

Recommended Citation

Drucker, J. (2013). Collared Crescentchest (Melanopareia torquata), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.colcre1.01