Glenda has discovered a place in the middle of a ring of rose bushes here the robins regularly come to “sun bathe.” They spread their wings for a bit, then seem to shake them out in sections. (Unfortunately I wasn’t expecting this so didn’t have my finger on the video button.) In the final shot, the Robin appears to be scratching/cleaning its chin with a claw.
We have no idea why the robins pick this spot. Other birds sometimes sun briefly there but the robins run them off. When a hawk appeared overhead this morning and circled, the robins quickly disappeared.