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So, I was thinking the tubes could be copper pipe, maybe 1/2 inch diameter, M quality which are like $7.29 a 6 ft. piece at Canadian Tire...Wire could be copper wire, a large roll...(50 ft.)
  Fooling around still with Trumpeter swan House designs...Can be modified for other waterbirds...
  4 tubes attached by wire for floor level...3 tubes attached by wire for roof level...
  Two walls for wind protection...(could be fibreglass sheeting mesh, or chicken wire, either. covered in slurry admix adulterated cement mix...)
  Fill base with straw...

PIZAP.com is who I used to cut out the photo & edit, then iPhoto on Mac Snow leopard...
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Same design as above, but all shapes are round instead of square, basically...So round base, half-circle roof, & arc support...
or maybe, a round base, with a semi-arc top. with a semi-semi-arc to support it...? 
I like roundness for a waterbird shelter nest...Need some more practice materials to test for balance issues...Hairbands & cardboard aren't exactly the stuff of museum work...Well, maybe? 
Went from copper pipe, to galvanized steel rods, to reusing bird seed bags as support materials...From the sublime to the ridiculous...Funny, but most people tend to prefer the ridiculous...(Although the ridiculous is often the cheapest, so maybe that is it...)

Here's a tidbit: http://lifehacker.com/283088/share-your-macs-internet-connection-wirelessly My brother gave me an iPod for my birthday...But I didn't have a wireless router for my Mac, so I couldn't use the Ipod to surf the net at home...(Like in the bathtub where it is sooo important!)...So, I found this link today, after several days of looking...It tells you how you just go to your System preferences, & do a few more things, & boom, wow, you got your Mac to share with your Ipod- even set up a password so that others can't bootleg in your building...So now I totally have wifi on my ipod at home without spending a dime...Yay! (I thought I was going to have to buy Airport Express which costs $99 dollars...)