The Lesser Shrike-Tyrant is a tyrant flycatcher that catches insects on the ground. A species page from the National University of the Litoral describes it alone or in pairs, making short runs to catch insects and also perching at the tops of shrubs.
The species account gives a length of about 17 cm. It has a grey-brown back, white throat with brown streaks, grey breast, and ochre belly. Its wings are dark with pale edging.
It occurs alone or in pairs, catches ground insects with short runs, and perches on shrub tops.
An extinction-risk assessment has not been added yet.