Yellow-bellied Elaenia vs Small-billed Elaenia

In short

The Yellow-bellied Elaenia and Small-billed Elaenia can be tricky to differentiate due to their similar appearance. Key differences lie in the bill size and underpart coloration, with the Small-billed Elaenia having a shorter bill and grayer underparts. Vocalizations are often more reliable for identification.

Identification tips

1. Look for bill size: Small-billed Elaenia has a noticeably shorter bill. 2. Check underpart color: Yellow-bellied Elaenia has a yellower belly. 3. Observe wingbars: Small-billed Elaenia may show a third wingbar. 4. Use vocalizations if possible, as they are more reliable than visual cues.

Size

Both species are similar in size, typical of small tyrant flycatchers.

Plumage

Yellow-bellied Elaenia has a more yellowish belly, while the Small-billed Elaenia shows grayer underparts. Both have wingbars, but the Small-billed Elaenia may have a more distinct third wingbar.

Behaviour

Both species are active and conspicuous, often perching in the open and vocalizing.

Habitat

Yellow-bellied Elaenia is found in scrub and savanna, while Small-billed Elaenia is more common in parks and similar open areas.

Voice

Vocalizations are a more reliable way to differentiate these species, though specific calls are not detailed here.