I would check out:
http://www.pacifier.com/~mpatters/bird.html BIRDS
good info on bird houses and humming bird feeders. And he's a Tweeter, I
believe.

On Wed, 26 Mar 1997 20:06:11 -0500 (EST) Dyannesh at aol.com writes:
>Tweeters: I enjoy all the bird observations from near and far and it
>has
>rejuventated my old habit of strolling with bino's in my Leschi
>neighborhood...so here is my question: does anyone know of any good
>sources
>for bird house plans? I am wanting some good "homes" at my home, and
>have
>one that is quite unsatisfactory (it's one redeeming feature is that
>the
>opening is too small for the ubiqutous "rats with wings").
>Specifically I am
>looking for plans for house finches and/or house wrens ( I know,
>different
>diameter openings...) You can do a general post or email directly me
>directly as noted below.
>
>By the way, if you like "rats with wings", you may also appreciate
>"cows with
>wings" ...think about it...
>
>Dyanne Sheldon
>Leschi neighborhood of Seattle
>DyanneSh at aol.com
>
>
>