What is this? 7-4

[remrogers]

[bambam]

portable stove ?

[pitw]

portable stove ?

Would it heat a tiny pan?

I'm thinking it's a portable song bird trap for them intrepid bird watchers.

[remrogers]

Decent guesses, but not correct. pitw is on the right track.

[Todd Rahm]

Live Pigeon Trapâ€"â€"â€"way before round clays.

[remrogers]

Todd has this one correct. A pigeon was placed inside, the device was tripped, releasing the sides and allowing the bird to fly. Shooters then had opportunity to knock the bird down.