This observation is for the unfortunate victim about to become the robberfly's next meal.
The observation for the predator is here:
https://www.inaturalist.org/observations/58924247/
Female, first seen near bird observatory on April 7, 1990, and then caught in mist net on the 8th, and banded by staff. Noticeably larger than nearby Common Redpolls and with nearly un-streaked under-parts.