Hi Bak, Yes a biologist here, although retired now. Just flying birds and breeding some unusual ones here and there. And yes, the Black Spar is the one that can be a bit difficult. The truth is none of them are exactly easy (except perhaps the Harris' Hawk), but some of them are much more reactive than others which can make training, handling, and flying difficult. I have had quite a long distance love affair with the Red-necked Falcon and the Gabar Goshawk for some time now. Our prey base is becoming less reliable on the upper end quarries and where I live there were never many to begin with (ducks on migration, jackrabbits and cotton-tailed rabbits) and their numbers frequently make wide swings based on how much rain we've gotten and/or how much cold weather is occurring in the north where the ducks come from. So after years of flying Goshawks on rabbits, jackrabbits and larger birds, I have now shifted into the smaller quarry base of two species of Quail and several species of Doves with smaller falcons and smaller hawks. Many of the birds I have focused on lately have had origins in Africa because our climate locally is quite similar...mild winters for the most part, and hot to very hot spring, summer and fall. I have flown several Barbary Falcons, the tiercels are a favorite, and also Teita Falcons (beautiful flyers but not all that practical for falconry due to their preferred hunting strategy....prey birds that are high in the air, difficult to replicate by a land anchored human). I currently fly a hybrid of the Barbary and Teita. And I like the tiercel Cooper's Hawk for its smaller size and it's preference for small bird quarry...they absolutely love quail! I would love to get some Gabar Goshawks into our country, but I don't see that happening while I'm still able to get out into the field (I'm in my early 60s now). I look forward to hearing about your adventures with them at some point.