U of New Hampshire coop ext. says, "1 mm. sq. (the large end of a flat toothpick) will deworm a standard bird. Here's the web address :
http://extension.unh.edu/Agric/Docs/internalparasites.pdf
It's in small print near the end after the box chart.
http://extension.unh.edu/Agric/Docs/internalparasites.pdf
It's in small print near the end after the box chart.
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