At the surprise of Ricardo Martinez and several others, I spotted this species (not knowing what it was). On showing the photo, the field marks are all there for Santa Marta Bush-tyrant. Unfortunately for everyone the bird immediately disappeared and no better photos could be managed - apologies for that. Cuchillo San Lorenzo, Santa Marta Mountains.
Aside from managing something in focus, about the only good thing with this photo is that it shows the somewhat unique upturned bill. This bird was located (thinking it was a woodpecker) with a loud tapping near the Eco Lodge at Cuchillo San Lorenzo