12 Mar. 1980|
Wood duck house predator guard,make plans god laughs,dollhouse plans free download - Test Out
Predator guards for nest boxes minimize predation of eggs, nestlings, and adult birds at the boxes. We also experience occasional predation from the Great Plains rat snake, domestic cat, raccoon, and probably other animals. We use metal cone predator guards successfully with eastern bluebird and wood duck nest boxes.
We have tried several other predator guards with eastern bluebird nest boxes, including nylon mesh cones by themselves, greased poles, pepper extract treated poles, and electrified wires. Nylon mesh cones by themselves significantly reduce predation, but trap snakes by entangling them in the mesh.
Placing nest boxes on posts of electric fences or wrapping electrified wires around posts or pipes below nest boxes have successfully deterred predation in the relatively few nest boxes that we protect in this manner.
Predator guards on posts are essential to protect eggs, nestlings and incubating parents from climbing predators.
You can make a homemade compass to scribe the metal, using a stick of wood with two sharp nails placed 18" part, or a piece of string and a magic marker. You can either attach the cone to the post using angled wooden blocks (see Step 6) or metal tabs from the center hole that bend over and are nailed to the pole.
If you don't make pre-cut metal tabs you can make angled wood blocks to nail the guard in place. When nest boxes are present continuously in the same area, predation generally increases dramatically by the third year. When a snake overcomes a metal cone guard, we sometimes add a nylon mesh cone below the metal cone to deter or trap the snake.
Watch this photos of a Yellow-bellied Water Snake in a Wood Duck box outfitted with a 30" cone guard. I plan to try some metal cone guards with a larger diameter, but I do not know whether they will be practical.