This needs a drop.

Classified ads at time of posting:

http://m.imgur.com/pDbelHp

http://backpack.tf/classifieds/?item=Bolted%20Birdcage&quality=6&tradable=1&craftable=1

1*1.55 refined

2*1.66 refined

1*1.77 refined

1*1.88 refined

Unsolds at 1.88 refined:

http://www.tf2outpost.com/trade/26056138 (~1 day, young)

http://www.tf2outpost.com/trade/25930573 (~2 weeks, poorly bumped)

Unsolds at Bp tf price:

http://www.tf2outpost.com/trade/26057341 (~1 day, young)

http://www.tf2outpost.com/trade/26020540 (~6 days, never bumped)

Sellers at 1.66 refined:

http://www.tf2outpost.com/trade/26032985 (~4 days old)

http://www.tf2outpost.com/trade/25716231 (~1 month old)

This is all I could find on Outpost that are valid at the time of posting this suggestion.