Chimney spikes for bird?

Saw this and I just needed to share…

I guess it was meant to keep birds from getting on top of chimney flue pipe.

That’s a first

pest bird management or secret radio transmissions

It appears to be working, no birds

Modified pest management.

Lol. Good post Marc.

OP, was the occupant wearing a tin foil hat?

No, not a tin foil hat!**
[size=2]
THE THOUGHT SCREEN HELMET STOPS SPACE ALIENS FROM ABDUCTING HUMANS
[/size]**

I would be concerned with the screening over the vent openings. These could ice or freeze and cause a potential blockage.

Never in Canada saw any freeze also in very old homes saw many
1 1/4 plumbing vents always working fine . all screened wall vents never seen any freeze