Closer is always better than all the lenses you can hang on a camera, image quality degrades with every foot you are from your subject. I've had a screen house in the yard for several years, one of the portable models, but it takes time to set up and take down, and the weather took it's toll on things. It worked OK, the screen was hard enough to see through from outside that the birds didn't notice me so much, but you had to sit very still for the shy ones.
I found a small hunters blind on sale at Gander Mountain, 60 second set up and take down, rainproof, 6 pounds, and fits on the motorscooter. There is room for a lawn chair or stool, and a tripod, just right! It needs some screens added to keep skeeters from coming through the viewports, but that's a simple job.
New pics in the galleries, I just haven't had time to create slideshows.