With the same color combination as the thick-billed euphonia (Euphonia laniirostris) it might be difficult to tell them apart on the fly, but as the name implies the difference is the shape of the bill. Their vocalizations are also different.

As with the thick-billed euphonia it is a common visitor to feeding stations offering various types of fruit..

It sounds like this:

Elevation: 1310 meters

• Aperture: ƒ/5.6
• Camera: NIKON D5
• Focal length: 700mm
• ISO: 2500
• Shutter speed: 1/640 s