Friends of Ottawa National Wildlife Refuge
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Jessica Duez shows the warblers on the stairwell windows
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Bird Friendly Facility Project

A paper published in Science by Rosenberg et al in 2019 brought to attention an alarming decline in North American bird number, estimating that nearly 3 billion adult breeding birds have been lost since 1970. These findings were a call to action for the U.S. Fish and Wildlife Service and the Region 3 Migratory Bird Program proposed a challenge for FWS facilities to come up with a plan to make their facilities more bird friendly.

2021 intern Jessica Duez took this project on! She was involved with researching potential actions, proposing  the plans for the Ottawa National Wildlife Refuge facilities, determining the budget for the project and bringing the plans to life. She is proud to have been part of this project to save birds. 

The Ottawa National Wildlife Refuge Bird Friendly Facility Project was sponsored in part by the Friends of Ottawa National Wildlife Refuge. It involved installing one-way film on windows, constructing and hanging zen curtains on other buildings including the Wildlife Window and the Refuge Ranger Station.

To make your home more bird friendly, consider installing film or zen curtains.

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​What Are Zen Curtains?
Zen curtains are exterior window treatments that break up the reflections of windows and create a visual barrier for birds to see. They are generally made of vinyl j-channel and paracord, and secured to the outsides of windows. Zen curtains can dangle freely, or be tied down to a second piece of vinyl j-channel at the bottom so they are taut. These window treatments are an easy and inexpensive way to make windows bird safe.

Make Your Own Zen Curtains!
  • Width of window frame in inches divided by 2 = approximate number of strands of paracord needed.
  • Height of window frame in inches, plus 1 inch, multiplied by the number of strands of paracord = total length of paracord needed in inches. Convert to feet by diving by 12. Add 1/2 inch per foot to account for the shrinkage of the paracord when it initially gets wet, but only if purchasing paracord that is not pre-shrunk by the manufacturer.
  • Purchase a little extra paracord to account for any possible measuring errors made.
  • Vinyl j-channel is usually sold in 10 foot pieces. Measure the width of the window to determine how many pieces of j-channel you'll need. Cut j-channel to size with a saw.
  • Paracord is sold in a variety of lengths. Follow these steps to calculate how much paracord you'll need.

How To Assemble And Hang

STEP 1: Add holes to vinyl j-channel to attach paracord strands by measuring every 2 inches along the bottom of the j-channel, and marking with a pencil. Drill a hole in the center of the bottom of the j-channel on each mark. Use a drill bit that will create large enough holes for the paracord to fit through.

STEP 2: Measure each strand of paracord with a ruler to the length of the window frame plus an extra inch for the knot. Cut the paracord with scissors, but don't let go of each end. Carefully use a lighter to melt the ends of the paracord to keep them from fraying. Make enough strands of paracord to fill each hole drilled in the j-channel.

STEP 3: String a strand of paracord through the first hole in the j-channel. Tie a knot in the paracord above the j-channel so it won't fall back out. Repeat until all strands of paracord are strung on j-channel.

STEP 4: Using screws and a drill, secure the zen curtain to the top of the window frame on the outside of the window. You may need a ladder for this step. In some cases, you may be able to avoid using screws by sliding the j-channel into space in your vinyl siding. 
Materials Needed:
  • Vinyl j-channel
  • Paracord
  • Scissors
  • Tape measure
  • Lighter
  • Drill
  • Ladder
  • Screws
  • Pencil
Download a How-To Guide
Photo: Zen curtains on the Refuge Ranger Station
Photo: Image 360 installs a trumpeter swan window film on the back of the Visitor Center
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Photo: Jessica Duez with the eagle film on the front window
Photo: Image 360 installs the eagle film on the front window
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Friends of Ottawa NWR
14000 W. State Route 2
Oak Harbor, OH 43449 

  
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419-898-0014 x13
friendsofottawanwr@gmail.com

 EIN: 34-1904821   
Visitor Center open Wednesday-Sunday 10am-4pm.
  • HOME
  • YOUR REFUGE
    • Plan Your Visit
    • Ottawa NWR Complex
    • Refuge Challenges
    • Recent Sightings
    • Visitor Center
    • Kids Corner
    • Wildlife Drive
    • Endangered Wildlife
    • Endangered Plants
    • Research >
      • Bald Eagle Updates
      • West Sister Island Rookery
      • Blanding's Turtles
    • Gallery >
      • Most Memorable Moments
      • Photos by Friends
    • Wildlife Observation & Birding Tips
    • Timing of Bird Migration
    • Spring Birding Spots
    • Fishing and Hunting Information
    • Refuge Staff
    • EV Charging Station
    • Barn Quilt Trail
    • Know Your Signs
    • National Wildlife Refuge System
  • Who we are
    • Our Story
    • Friends History
    • Network of Friends
    • Strategic Goals
    • Financials
    • Board of Directors
    • Friends Staff
    • Community Partners
  • WHAT WE DO
    • Events >
      • Spring Migration
      • Chili Cookoff
      • Photography Contest
    • Friends Programs >
      • Land Acquisition and Restoration
      • Internship Program
      • Environmental Education Grants
      • Nature Programs
    • Friends Projects >
      • Shuttle
      • Bird Friendly Facility Project
      • Fox Nature Preserve
      • Nehls Memorial Nature Preserve
      • Portage River Water Trail
      • Marinewood Restoration
      • West Harbor Project
      • Wildlife Drive Improvements
      • Visitor Center Fishing Access
    • Recent Accomplishments
    • Carrying on a Legacy
  • HOW TO HELP
    • Donate
    • License Plate
    • Become a Member
    • Wheels for Wetlands
    • Legacy Gifts
    • Federal Duck Stamp Program
    • Volunteer >
      • Volunteer Portal
    • Corporate Sponsors
    • Conservation at Home
    • Say No to Balloon Releases
  • Shop