Short-tailed Pygmy-Tyrant vs White-bellied Tody-Tyrant

In short

The Short-tailed Pygmy-Tyrant and White-bellied Tody-Tyrant are both small, insectivorous birds of the Tyrant Flycatcher family. The most reliable field mark is the tail length: the Short-tailed Pygmy-Tyrant has an exceptionally short tail, while the White-bellied Tody-Tyrant has a more typical tail length for its size. Both species inhabit lowland forests, but their plumage and vocalizations offer additional clues for identification.

Identification tips

• Tail length: Look for the very short tail of the Short-tailed Pygmy-Tyrant.
• Plumage: Note the pale iris of the White-bellied Tody-Tyrant.
• Habitat: Consider the specific range within Amazonia for the Short-tailed Pygmy-Tyrant.
• Behavior: Observe flocking behavior; the Short-tailed Pygmy-Tyrant is less likely to join mixed-species flocks.

Size

Both species are tiny, but the Short-tailed Pygmy-Tyrant is one of the smallest passerines in the world.

Plumage

The Short-tailed Pygmy-Tyrant is generally olive-green above and pale below, while the White-bellied Tody-Tyrant is light olive-green above with a grayish-white belly. The White-bellied Tody-Tyrant also has a pale iris, which can be a distinguishing feature.

Behaviour

The Short-tailed Pygmy-Tyrant rarely follows mixed-species flocks, while the White-bellied Tody-Tyrant's behavior in this regard is less documented.

Habitat

Both species prefer humid lowland forests, but the Short-tailed Pygmy-Tyrant is specifically found across much of Amazonia and up to the eastern Andes foothills.

Voice

Vocalizations are not well-documented in the provided notes, but listening for differences in calls can be useful if known.