Cornice detachment on Sibbald

We witnessed many recent cornice drops on our way to the summit of Sibbald, including one very large cornice detachment on the NW ridge. Lots of faceted snow at ridge top and large cornices on lee features that seem to be rotting with the persistent cold temps. Lots of snow on the glaciers for anyone traversing through, 3-4m+ on Sibbald and Battlement.