M2

What do you call the small wooden construction on top of a barn with slats for ventilation? (It sometimes has a weather vane on it.)

This question was slightly altered from the 1965–70 question.

CUPOLA11
VENT3
LOUVER2
VENTILATOR2
AIR VENT1

DARE Data Summary by Dictionary of American Regional English (DARE) is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.