Background: If you have a lot of sparrows where you live and you feed birds, you might already know, House or "English" Sparrows are a non-native pervasive bird species that invade, and interrupt your favorite native songbirds nesting sites, habitat, and bird feeding stations.  They are a very aggressive and high-strung bird, and in quantity, will keep multiplying and take over your backyard environment if food is plentiful.

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Monofilament line

• Using monofilament fishing line is a University tested method of stopping, or vastly reducing house (English) sparrows from using bird feeders, the method can be 99% effective in some cases.

• Rollerfeeder has tested monofilament line on its products for over a year with great success & squirrels don't entangle themselves in the lines or can the line be removed.

• There are after-market products that use monofilament line costing up to $25.  Monofilament fishing line is easily attached to a Rollerfeeder with no added cost, if you have some handy in a fishing tackle box or know someone....also inexpensive to purchase.  

• It is important to repeat squirrels do not entangle themselves or remove the lines using our method.

Works on all RF models.

How to prevent house or english sparrows by using 

monofilament fishing line on a Rollerfeeder.

(Use this technique for difficult house sparrow 

problems, otherwise it is not required)

Adding lines help prevent houses sparrows up to 99% in 

some cases, native songbirds keep visiting.

1. Cut 4 pieces of monofilament line approx 9-12" length.

2. Loosen the 4 edge roof screws nearest to the perch.  Simply loop the ends of the line around the 4 roof screws and let hang outward as shown in photos and illustration, bottom of page.  Or, tie string to stainless steel roof edging.

3. If you have unmanageable house sparrow problems, make the line a little longer, then tie each end to the 2 roof screws (or roof edge) creating a loose loop (from one roof screw to the other).  Do this on each side of the feeder.  After the sparrow problems subside, cut the line in the middle and let them dangle along the sides of the feeder, as shown in below graphic illustration.

(Use this technique for difficult house sparrow 

problems, otherwise it is not required)

Note: Small-medium size birds like chickadees, nuthatches, finches, tufted titmice etc. will adjust quickly and use the feeder, but house sparrows will be dramatically reduced. 

Tip: Also use "black-oil sunflower", avoid inexpensive mixed seed with millet & cracked corn, sparrows don't like to open the sunflower shell.

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Cut monofilament lines 9-12" length, then attach to 4 roof screws.