Instructables

1 Cap Water Bottle Bird Feeder

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Picture of 1 Cap Water Bottle Bird Feeder
I call it '1 Cap' because I have a 3 cap version that I made first that works really well. Found in my Flickr Set: Flickr Photos - Homemade Birdfeeders

This feeder was inspired by billr's How to build a "Flexi-Perch" Squirrel-proof birdfeeder for $10 or less (Thanks Bill!)
 
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Step 1: Tools & Materials

TOOLS
Utility knife
File, round
Small saw with fine teeth
Wire cutters
Fine black marker

MATERIALS
1 water bottle, any size (the cap needs to be as deep as possible to hold on to the bottle. Try to find a cap made of soft plastic, the white cap was very hard to cut.)
2 cable ties, any colour but black ones are stronger
2 small cup hooks or screw eyes, 3/4"/2 cm
4 pieces of wire 8 inch / 20.3 cm long (not shown)
Bird seed - nyger, finch mix, any small seed, etc. (not shown)

Gather your materials and tools. Almost all the materials and tools can be found around the house or bought at a dollar store! Bird seed can be found at a bulk food store, grocery store, farm supply store, home renovation store, etc.

I'm using 8 inch / 20.3 cm cable ties cut down to 5 inch / 12.7 cm.

Step 3: Cut the sides of the cap

Use the utility knife to cut down to the 'top' of the cap (now the bottom). Cut away half of the cut portion to make an opening for the bird to access the seed. Bend it outward a bit. Remove the inner ring to allow the cable tie to pass through the bottom.
usmarine244 years ago
Great idea! I plan on making one out of a 2 liter bottle so I dont have to fill but once a week.
chuckr445 years ago
Great idea. I stopped feeding the birds because most of the birds around here are the destructive European House Sparrow.
Sparrows need to eat too.

And what do they destroy? Woodpeckers are more destructive than house sparrows.
Greenish Apple (author)  unseen wombat4 years ago
House sparrows are an invasive, introduced species that are native to Europe. They are not related to the New World sparrows but are a weaver finch.

Recently a small flock of 4 HOSP have been taking over any small seed feeder I have hanging.

Destructive? They displace native species, at feeders and in nesting sites.
Greenish Apple (author)  chuckr445 years ago
Actually, last fall a family of 6-8 House Sparrows visited it regularly. And Starlings tried but they were too heavy, putting it off balance. It was nice to see Chipping Sparrows use it. I might put it up again to see if the Dark Eyed Juncos will use it. David
mina20205 years ago
burt435 years ago
got to stop making new plastic bottles. and recycle the old. like this smart person did. ans put a cone around the top to keep out the squrills
mg0930mg5 years ago
Smart, cheap, and easy. Great job, this is very nice.