Nesting biology of the ochre?breasted tanager (chlorothraupis stolzmanni) in tatamÁ national natural park, Colombia

Abstract

Information on the nesting of the Ochre-breasted Tanager (Chlorothraupis stolzmanni) is limited, only brief nest and egg descriptions are available. This study was based on two nests monitored between February and June 2014, in Tatamá National Park, Colombia. Both nests consisted of a bulky and deep cup and were placed on epiphytes that grew on tree branches or on tree ferns. Two white eggs with reddish-brown spots concentrated at the larger end were found in each nest. The parents spent 68.8 ± 15.4% of their daytime incubating, and conducted 4.6 ± 0.5 off-bout trips per day (N = 8 days) that lasted 44.6 ± 5.1 min (N = 36 off-bouts). Overall, our results showed that C. stolzmanni had a small clutch size and low nest attentiveness typical of related species and other tropical passerines. However, further studies are needed to better understand factors that might contribute to similarities and differences in the nesting behavior among Chlorothraupis species.