The falconer's knot is a knot used in falconry to tether a bird of prey to a perch. Some sources show this knot to be identical to the halter hitch, but with a specific method of single-handed tying needed when the other hand is occupied holding the bird, which makes this knot very useful.

The falconer's knot is usually tied one handed with the right hand (using two fingers to hold the end, and the thumb to hook behind the end) as follows:

To untie, one simply pulls out the free end, tugs hard, and it should untie. When securing birds of prey, two knots will often be used as birds can learn to untie them.