DIY Bird shooting Platform

How to DIY build a portable DIY bird shooting platform.

Image of northern cardinal shot right outside our living room window, distance to shooting platform was about 3 meters or 10 feet!
See the platform build process and more images taken utilizing it

in our build a portable bird shooting platform construction and use article on blogger
http://imagemakersjourneys.blogspot.ca/2013/01/portable-bird-photography-feeder.html