Naked chicks? I must look away!

We have a half-dozen or so gargoyles like this along the south wall of the Student Centre. I blipped a different one back in October. The cheeky title reflects the likely state of the occupants of the birds nest built this spring by a breeding pair. What species of bird I cannot say but we have a lot of sparrows around. Seems a bit big for sparrows. Seems more robin sized. I'll keep an eye out for the culprits.

Yesterday's blip: Once ubiquitous, now scarce