eye-ringed flatbill vs bico-chato-de-orelha-preta

The Eye-ringed Flatbill and Yellow-olive Flatbill can be distinguished by their head markings and eye color. The Eye-ringed Flatbill features a prominent eye-ring, while the Yellow-olive Flatbill lacks this and instead has a light-gray crown and pale gray cheeks and throat.

Look for the eye-ring on the Eye-ringed Flatbill, which is absent in the Yellow-olive Flatbill. Check the crown and cheeks: the Yellow-olive Flatbill has a light-gray crown and pale gray cheeks and throat.

The Eye-ringed Flatbill is noted for its eye-ring, whereas the Yellow-olive Flatbill has a light-gray crown and pale gray cheeks and throat. The Yellow-olive Flatbill's belly is pale yellow, and it has a whitish to pale yellow iris.