Nest and eggs undescribed. Juveniles noted at the end of August and in early September (Parker and Parker 1982).
Schulenberg, T. S. and C. W. Sedgwick (2012). Speckle-chested Piculet (Picumnus steindachneri), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.spcpic1.01