Thursday, December 30, 2021

Raptor Perches for Organic Integrated Pest Management

 Arendell Hill has two new raptor perches now and we hope the birds of prey make themselves at home on the fourteen feet tall bird stands. These raptor perches are inexpensive and easy to build, and can be moved as necessary to different locations in the future.

Organic Hemp Cultivation incorporates birds as pest control partners.  Here is one of two raptor perches at Arendell Hill.

The horizontal perch section is a 1 1/4" diameter wooden dowel and is fastened to the vertical support pole.

Raptor perch, horizontal wooden dowel attached to vertical metal support pole

The materials list is for two perches:

  • Three 10' galvanized chain link fence top rail posts for vertical support
  • One 4' in length 1 1/4" diameter wooden dowel for horizontal perch
  • two galvanized chain link fence 1 3/8" T connectors 
Raptor Perch materials, IPM for Organic Hemp Cultivation

The tools I used to construct the raptor perches included; a fence post hammer (so much easier than a sledge hammer), level, portable ratchet, metal screws and portable screwdriver.

Raptor perch support pole should be plumb vertical

I cut one of the three ten foot top rail posts in half and drove the smaller diameter end into the ground using the pipe hammer approximately three feet or depending on the soil composition deep enough to keep the five foot pipe section sturdy.

Using the level I made sure the support pipe I was driving into the ground was vertically plumb, straight up and not skewed or leaning to the side.

Raptor perch support poles are fastened together and secured with metal screws

Once the support pipe is hammered into the ground then the small diameter end of the uncut ten foot six inch top rail pipe with the wooden dowel attached are placed into the support pipe. The two vertical pipes are fastened together with two metal screws.  A pilot hole can be drilled for the two metal screws.

Because the raptor perch support post is not permanently anchored in concrete, it can be moved depending upon hawk or other raptor flight patterns.  Disassembly is easy; unscrew the two metal screws, remove the longer top rail with perch attached then pull up the support pipe hammered into the ground.

Birds of prey such as both the red-shoulder and red-tail hawks, swallow tail kites, sharp-shinned hawks, Cooper's hawks, broad-winged hawk, Swainson's hawk, Screech owls, Barred owls, Great horned owls, Barn owls, Peregrine falcons, Kestrels and even vultures scour hemp cultivation areas for rodents and other vermin.

Rats, mice and other vermin will eat hemp and cannabis plants and flower buds for food and also for the phytochemical action upon their bodies. Once a vermin devours enough cannabis flower they make an easy target for a nearby bird of prey.

Raptor perches afford the birds of prey a reason to stop and check out the hemp farm.  For the grower, hawks and owls are an important part of the beneficial organic pest control team.
















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