Breeding

There is very little information on the reproductive biology of Uniform Antshrike. Specimens with enlarged gonads were collected in the Colombian Andes in February-March in Valle and in May-June in Antioquia (Hilty and Brown 1986), and in August in central Peru (Fjeldså and Krabbe 1990); a fledgling was encountered in August in northwestern Ecuador (Fjeldså and Krabbe 1990); and juveniles are reported from Colombia in February and July in Valle (Miller 1963, Hilty and Brown 1986), and an immature from March in Cauca (Fjeldså and Krabbe 1990).

The nest is a deep cup composed of plant fibers, with an outer lining of green vegetation (moss?) that hangs below the cup (Zimmer and Isler 2003). The eggs are creamy white, heavily marked with large blotches and small spots that are brownish purple, lavender or red (Zimmer and Isler 2003).