I like to make ingenious little hummingbird feeders out of stuff from the rubbish bin. Let's see if a newbie like me can post a photo or two.
File too large. poo.
Oh well, a hummingbird feeder can be slung using a barrel knot and a couple of interlaced nooses. Turks heads make nice hangers, but are hardly worth the trouble. Perches can be made using utility wire tied in a button knot, and the part for the birds feet set off with a twist.
The advantage here is that this stuff is cheap, and will keep you busy tying instead of looking at a rope catalog! Your spouse will be grateful!