The Chaco Pygmy Owl is a very small owl with no ear-tufts. It is also known as the Tucuman Pygmy Owl.
Photo Gallery (1 picture)
Distribution: Bolivia and Paraguay to central-west Brazil and northern Argentina.
Status: Uncertain, locally not rare.
Original Description: Chapman, Frank Michler. 1922. American Museum Novitates (Am. Mus. Novit.), no. 30: p. 8.