Southern Mouse-coloured Tyrannulet vs Greenish Elaenia

In short

The Southern Mouse-coloured Tyrannulet and the Greenish Elaenia are both small, drab flycatchers, but they can be distinguished by their structure and subtle plumage differences. The Tyrannulet has a more compact build with a shorter tail, while the Elaenia shows a more elongated shape with a longer tail and a more prominent supercilium.

Identification tips

1. Look for the Greenish Elaenia's longer tail and more prominent supercilium. 2. Note the habitat: Tyrannulets are more often in dense undergrowth. 3. Listen for vocal differences: the Elaenia's song is more varied. 4. Observe plumage tone: Elaenia is greener with wing bars.

Size

Both species are small, but the Greenish Elaenia tends to appear slightly larger due to its longer tail and more elongated body.

Plumage

The Southern Mouse-coloured Tyrannulet is generally more uniformly grey-brown, while the Greenish Elaenia has a slightly greener hue with a more distinct pale supercilium and wing bars.

Behaviour

Both species are active foragers, but the Greenish Elaenia may be more likely to be seen in the open, sallying for insects.

Habitat

The Southern Mouse-coloured Tyrannulet is often found in dense undergrowth and forest edges, while the Greenish Elaenia prefers more open woodland and forest edges.

Voice

The vocalizations differ, with the Greenish Elaenia having a more varied and melodic song compared to the Tyrannulet's simpler calls.