Well, birding from 3ft away can indeed be done. Have a look for a bird-feeder, the kind that holds say sunflower hearts and is the kind that comes with suckers so you can fix it to the outside of a window. This can be very effective. We did this some years ago and by sketching the face patterns of the Coal Tits that visited we found there were 12 individuals coming and not just the 4 that we thought.Ah, ok I assumed you weren't looking at birds, I just needed to know your secret if you were luring birds 3 ft away. I'm not much of an insect person, I prefer vertebrates.