Palmbird / Thraupis palmarum

It is a medium-sized tanager with predominantly olive-gray plumage, darker wings, and slightly greenish tones on its head and back. Unlike the common bluebird, it does not have intense blue coloring. It is common in gardens, palm trees, forest edges, and wooded urban areas, especially in lowlands and midlands.

Fun fact:

It loves to feed on palm fruits (hence its name) and is often seen in small, noisy groups moving among fruit trees.