Giant Antpitta is largely terrestrial and forages as it hops along forest floor, often pausing to peer around and at the ground for long intervals. They frequently pound their heavy beak into the soil, quickly grabbing food items from surface (de Soye et al. 1997, Krabbe and Schulenberg 2003). Singing usually occurs just before dawn (de Soye et al. 1997) and around sunset, and is usually performed by adults perched 2-8 m above the ground. Foraging activity, however, apparently may continue all day (de Soye et al. 1997).

There are no published data on territorial defense, maintenance, or fidelity. Territories in northwestern Ecuador (hylodroma) are estimated at ca 1–1·5 ha (de Soye et al. 1997).

Not described, probably monogamous.

No published information.

No information.