I had one of those inset bird feeders. They work, but being in a urban environment I ended up attracting pigeons... My cat loved the one way plexiglass in the

I had one of those inset bird feeders. They work, but being in a urban environment I ended up attracting pigeons... My cat loved the one way plexiglass in the feeder and would watch the birds seated on back of a chair. The birds really can't see through it.