Stupid or wise as Member of Parliament? (6)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

Cryptic. The collective noun for owls is ‘parliament’ which comes up here regularly. I’ve heard of owls described wise or solemn, but never stupid, however Chambers has it. It’s quite fitting really when one considers the quality of many members of the Westminster parliament in recent and not so recent years.