Looking for a recommend brand and model and also looking for something with a reasonable price tag. We are having such a problem with predators this year. I had an open top 30x 50 pen. We own(ed) 35 ducks and 12 chickens. We have lost 3 ducks to predator attack. I bought netting and coverd the pen and still got hit again (most likely thru the fence or on top of the net). All was quiet for 2 weeks and then we got hit again last Wednesday. Came home to an Ancona Duck with all of her feathers ripped out and broken on her winds and down her back. No reason to beleive any of the other ducks would have done this damage. Looks to violent for that. Found tracks around the pen but they may be my own dog (pug) footprints. First two birds were taken by an owl or hawk. Only caught sight of them leaving. Grrr, its so frustrating. They have been on lock down in the coop this past week because I don't want to lose anymore.