Bird that can build tools and remember human faces

CROW

This clever black-feathered bird is known for dropping nuts on roads so cars will crack them open and has been observed solving multi-step puzzles in experiments.

This clue points to "crow" because crows are famously intelligent birds known for using tools—like bending wires to retrieve food—and recognizing individual human faces, even holding grudges. The answer plays it straight with no wordplay, relying on well-documented crow behaviors that make them stand out in the bird world. If you’ve heard stories about crows dropping nuts on roads for cars to crack or remembering people who’ve wronged them, that’s the connection.