I third that

I’d be interested in this area as well.

The tail and breast feathers differ slightly, he talks about it in a trapping vid

@@brendannielson5292 Thanks Brendan. I thought I watched all of the Kestrel Trapping videos and I don't remember that. I will go watch again an see if I can find it.

I've worked with a couple harpies in a zoological/education setting. I've worked with golden and bald eagles as well, though I've only hunted with buteos and falcons. I can honestly say, as much as working with eagles takes someone a little bit crazy, I can't imagine how completely off your rocker you would have to be to hunt a harpy. The (admittedly few) harpies I worked with were twice the weight of a golden- the big female was just shy of 20lbs. That's not a weight a human is meant to carry on their arm for any length of time. Harpies, like any eagle, can be aggressive, and if you were ever footed you would be in a world of trouble. We were not allowed to even enter the harpy's enclosure without a spotter. None of them were especially aggressive or troublesome- in fact they were quite well behaved- but it's more akin to working with a tiger or a lion than a falconry bird. To free fly this bird would be to put the public at extreme risk; I remember one "edu-tainment" company flying one point-to-point for programs, but they used a creance, and eventually stopped the practice entirely. Hunting with a golden eagle requires an extreme level of skill and a deep and personal understanding and acceptance of the of the potential consequences of something going wrong, but a harpy's natural diet is money-shaped and very large- up to and over their own weight. Small (and not so small) children also fit that same description. Our birds were glove trained, but we used half of a PVC pipe under a eagle sheath over a triple thick glove, and on one occasion, the big female got startled by a car alarm and cracked the PVC. Before I worked at this organization, one of their staff was footed in the face by a bald eagle they'd taken in (poorly managed imprint). The damage had been catastrophic: multiple surgeries and reconstruction was required. If you were footed in the face by a harpy, you'd quite possibly be dead. The human skull can withstand about 520psi: a harpy's grip is conveniently about 550-600psi, and their foot is plenty big enough to palm your whole face like a basketball. They are amazing birds, and I loved working with them, but I think you'd have to be 1) insane and 2) have a criminally cavalier attitude towards the safety of yourself and others to hunt with them. They aren't especially aggressive (at lest for an eagle, and at least not the three I've worked with who were professionally trained for several years before I worked with them), but if the consequences of a mistake with a golden eagle vs a red tail hawk are x10, the consequences of a mistake with a harpy vs a golden are x100.

In other videos he’s commented that the bigger Finnish Gos has a slightly better temperament.

Mostly so. I try to avoid imprint buteos where I can, other than ferrugies. Usually with buteos I prefer a hawk trapped passage, the first week of October. Falcons I usually imprint, but family bird falcons are also wonderful.

Any owl is bad for falconry due to the way they hunt