Make the world a birder place!
Easy to make, easy to clean, attractive, good for the planet! Uses any Mason-style canning jar and ring, easily scalable to different size jars, provided they have the standard opening. Doesn't leak when when assembled (though any hummingbird feeder may drip with temperature-related internal pressure changes).
From the Schlaboratory and designed with TINKER-days-are-numbered-CAD.
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