So cause someone did appreciated my scrapyard anealing machine here is another no cost creation: it really whorks when calling crows, magpies and tacles. Thank's to my friend Maurizio who ispired it.
All You need is:
N1 grill engine battery operated from ebay: 7,5 Usd
N1 D tipe cell: 1 usd (last many hours)
N1 7mm squared steel bar 2 inches long to fit in the motor slot; (hand filed, no cost)
N1 irriguing peg: 1 usd or less
N1 television antenna: 1Usd or less
N2 5mm aluminium bars, 25 inches long: (scrapyard)
N2 plastic crows decoys: (costs? depends where you live)
Use a dremel to cut a slot in the metal clamp so you can freely operate the motor swich on off
Use the same dremel to make a couple of holes in the decoys back and fix them to the alminium bars with metal wires so to let them swing (more realistic). Make some 5 mm holes in the wood dowel to axcept diferent heights of the alu bars, depending on nature of ground here You will be hunting. Gave everythings a good green paint: crows are smart!.
Here is is how it whorks (ultrashort videos)
Near view: http://tinypic.com/r/2d0x9bl/9
Far view effect: http://tinypic.com/r/2gvu51v/9
Ande here are pics of single parts, feel free to upgrade ))))