[Gray Goose]

never seen this before.
likely the bee was crushed during a "flow" cycle and the "cap" slid over and back.

could be flow hive specific. a "feature"

not likely the "slack" worker capped a dead bee in the cell.


GG

 

[Honeyeater]

could be flow hive specific. a "feature"

Pretty sure it is not. Transparent sides of frames just make it easier to see.
I do have a list of headaches with them though, don’t get me started there.

 

[Gray Goose]

never had one, not sure I would want one now.
Is an odd thing to cap in a bee.

good luck with your spring, Am in fall preps here now.