If you feed them, will they come?

Well I added a bird feeder right outside the window of our birdhouse in hopes that it would attract lots of birds and hopefully two of them would make a nest, but no nesting has begun.  We are all trying to be patient and wait to see if  this will work.  My theory is that most of the birds have eaten so much, I'm afraid they probably can't get through the birdhouse hole and begin nesting.  But one good thing is that all of the books about birds at this center are checked out! 

We'll continue our wait for nesting birds.  The saga continues!