How to Make Acopian BirdSavers using Vinyl J Channel for the top Horizontal piece.
In this example, for the top horizontal support, we will use the readily available, inexpensive, and good looking, vinyl J Channel (also called Drywall J Bead). This is available at Home Depot and costs about $1.70 for a 10 foot long piece. Any other material could also be used for the top horizontal support; such as wood moulding, aluminum extrusion, small diameter PVC pipe, etc.
Step 1: Measure the width of the glass.
Decide how far apart you want the cords to be and then use these tables to determine how many cords will be needed. If there is more than one pane of glass in your window, you may want to have a look at the “Acopian BirdSavers Cord Spacing Examples” before taking any measurements.
Step 2: Drill that number of holes in the J channel.
For the number of cords you will need (which you determined in Step 1), drill that number of holes in the J channel at the distance apart you also decided upon in Step 1. The holes should be just a little bit larger diameter than the diameter of the paracord, so that the paracord will easily fit into the hole, but the cord with one knot tied in it won’t go through the hole. Leave an inch or so of extra J channel material beyond the holes on both of the ends.
Step 3: Decide how you are going to mount the BirdSavers.
You can use small screws (#6 x 3/8” stainless steel sheet metal screws work very nicely), or you can use velcro.
If you are going to mount with screws, drill mounting holes in the J Channel. If you are going to mount with velcro, cut the velcro pieces and attach to the J Channel.
Step 4: Determine the length of the paracord pieces you will need.
You have two choices:
Option #1, the option we prefer (because it looks so cool!), is to make the BirdSavers so that the cords do not go all the way to the bottom of the glass. It looks more aesthetically pleasing when you can see an inch or two of space between the bottoms of the cords and the bottom of the glass, like in the photo below:
Option #2 is to have the cords go all the way to the bottom of the glass and beyond, like in the photos below:
To the birds it makes no difference which option you choose; you will achieve a 90 to 100 percent reduction in bird-window collisions with option #1 or option #2.
About the Paracord:
Most paracord commercially available will shrink after getting wet the first time. We’ve seen shrinkage up to 12% in some types of paracord! If you choose to make your own BirdSavers using Option #1 above, this could eventually leave an area at the bottom of the window with ‘exposed’ glass (although small) that a bird could fly into. Because of this, you might want to consider soaking the paracord in a bucket of hot water for a few hours and then let it dry (to ‘pre-shrink’ it) before making your BirdSavers. Or you can test a small piece first to determine if all the cord needs to be pre-shrunk; simply take a 5’ piece of cord and soak it in hot water for a few hours (or until the hot water cools somewhat). You can tell how much the BirdSavers you intend to put on your window will shrink by how much your 5’ sample piece shrank in your test.
We have been using dark olive green colored parachute cord (550 paracord) to make Acopian BirdSavers for many years. Also commonly called Olive Drab color, the 550 paracord has a diameter of approximately 1/8”. Using this cord for Acopian BirdSavers has proven very effective, as well as aesthetically pleasing. We are fairly certain though, that any dark color, or for that matter probably any color or any type of cord, will be just as effective as the dark olive green color paracord.
If you are making Option #1 BirdSavers:
Determine the length of the paracord pieces you will need so that when they are hanging they stop about an inch or inch and a half above the bottom of the glass. A knot will be tied at the very end of each paracord to hold the paracord from slipping through the hole you drilled in the J Channel. That knot will use up about one inch of paracord, so add that one inch to the length of the paracord you will
If you are making Option #2 BirdSavers:
Determine the length of the paracord pieces you will need so that they stop wherever you determine you would like them to stop. A knot will be tied at the very end of each paracord to hold the paracord from slipping through the hole you drilled in the J Channel. That knot will use up about one inch of paracord, so add that one inch to the length of the paracord you will need.
Step 5: Cut the paracord to the length you need and melt the ends with a match.
Step 6: Tie a single knot at one end of each paracord
Tie a single knot in the very end of each piece of paracord and thread each paracord piece through each hole in the J Channel. Your BirdSavers is now ready to be installed on the window!
Step 7: Positioning the BirdSavers
Hold the BirdSavers against the window in the position that it should be in when it is in it’s final position – Position the BirdSavers so that the two ‘hanging cords’ on each end are the same distance from each side of the window. When you are comfortable with where the BirdSavers will hang, you can attach the BirdSavers to the building, using either the screws or the velcro.
Step 8: Finishing Touches
After the BirdSavers is installed, any kinks or curves in the ‘hanging cords’ can be smoothed out by holding the offending cord near the top with your fingers and then pulling (straightening) the bottom of the cord with your other hand.
Step 9: Send Us Some Photos!
Final installation of Completed BirdSavers on Window: