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<p>The canebrake groundcreeper (<i>Clibanornis dendrocolaptoides</i>) is a furnariid of the southern Atlantic Forest in eastern Paraguay, southern Brazil and northeastern Argentina. Its breeding biology was undescribed. We studied two active nests that were burrowed into the walls of old human-made shafts in native Atlantic Forest in Argentina. Nest burrows were horizontal tunnels 62 and 74&#xa0;cm deep, with the final 15 and 14&#xa0;cm widening into nest chambers, which contained a cup-shaped nest of rootlets, twigs, mosses, bark fibers and fungal rhizomorphs. One nest produced three fledglings on one morning and had one egg that failed to hatch; the other nest had two or three fledglings that fledged on two consecutive mornings. The two nests fledged 42 days apart in December and January. Nests were attended by two adults. The food items provided to nestlings were 50% Lepidoptera (moths and butterflies in several life stages) and 13% Arachnida (spiders and spider egg sacs); the remainder comprised a wide variety of other arthropods. The genus <i>Clibanornis</i> currently contains five species, two of which were placed in <i>Automolus</i> and two in <i>Hylocryptus</i> prior to molecular phylogeny studies. Our results indicate broad similarities in burrow nesting, nest materials, and brood size among the current <i>Clibanornis</i> taxa.</p>

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Breeding biology of the canebrake groundcreeper (Clibanornis dendrocolaptoides)

  • 期刊论文

  • 发表日期：

    2026年7月7日

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  • Martjan Lammertink,
  • Milka R. Gomez,
  • Carlos Ferreyra,
  • Alejandro Bodrati,
  • Kristina L. Cockle

摘要

The canebrake groundcreeper (Clibanornis dendrocolaptoides) is a furnariid of the southern Atlantic Forest in eastern Paraguay, southern Brazil and northeastern Argentina. Its breeding biology was undescribed. We studied two active nests that were burrowed into the walls of old human-made shafts in native Atlantic Forest in Argentina. Nest burrows were horizontal tunnels 62 and 74 cm deep, with the final 15 and 14 cm widening into nest chambers, which contained a cup-shaped nest of rootlets, twigs, mosses, bark fibers and fungal rhizomorphs. One nest produced three fledglings on one morning and had one egg that failed to hatch; the other nest had two or three fledglings that fledged on two consecutive mornings. The two nests fledged 42 days apart in December and January. Nests were attended by two adults. The food items provided to nestlings were 50% Lepidoptera (moths and butterflies in several life stages) and 13% Arachnida (spiders and spider egg sacs); the remainder comprised a wide variety of other arthropods. The genus Clibanornis currently contains five species, two of which were placed in Automolus and two in Hylocryptus prior to molecular phylogeny studies. Our results indicate broad similarities in burrow nesting, nest materials, and brood size among the current Clibanornis taxa.