Birdproof Netting Stainless Steel
Stainless Steel Birdproof Netting
This will arrive in a flat strip with short legs at each end and long fingers on each side.
To fit the cowl: The two outside short legs on one end need to be bent to 90 degrees. Then wrap the netting around the cowl and lock firmly in place by fitting the two bend legs through the opposite square holes and bend over to secure. Lastly, bend all of the long fingers (both top and bottom) at 90 degrees, as pictured, to prevent birds entering the cowl.
The cowl can be removed from the flue for cleaning without removing the bird netting.