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1 June 2013 Nesting of the Yellow-Breasted Warbling-Antbird (Hypocnemis subflava) With Notes On the Nesting Biology of the Hypocnemis cantator Complex
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Abstract

We provide the first detailed nesting biology information for the Yellow-breasted Warbling-Antbird (Hypocnemis subflava), a member of the recently split Warbling Antbird complex. We found seven pouch-shaped nests with two eggs or nestlings within Manu National Park, SE Peru. Long incubation sessions (93.7 ± 7.78 minutes, range  =  4–480 minutes, n  =  18 days) were untaken by both parents and high diurnal nest attentiveness (% of time on the nest) averaged 85.8 ± 1.4% (n  =  16) as a result of taking fewer short foraging trips (6.3 ± 0.6 trips/day, range  =  3–11; n  =  14) that lasted 16.19 ± 1.78 min (range  =  1–91; n  =  18). Incubation behavior produced an average inner nest temperature of 32.3 ± 0.24 °C (n  =  15 days) and average egg temperature of 36.4 ± 0.09 °C (n  =  3). Individual nests at different elevations exhibit differences in incubation behavior. The nestling period was 11 days (n  =  1) and both parents brooded and fed the nestlings. Nest shape, location, and composition were similar to other species in the complex, but egg coloration was variable among species.

2013 by the Wilson Ornithological Society
Santiago David and Gustavo A. Londoño "Nesting of the Yellow-Breasted Warbling-Antbird (Hypocnemis subflava) With Notes On the Nesting Biology of the Hypocnemis cantator Complex," The Wilson Journal of Ornithology 125(2), (1 June 2013). https://doi.org/10.1676/12-117.1
Received: 9 July 2012; Accepted: 1 January 2013; Published: 1 June 2013
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