Sep 26 2009
By weight, five of these equal one of these
How do I know?
When five house sparrows perch on my “squirrel proof” bird feeder, the lid tips and the feeder closes. That’s exactly what happens when one common grackle lands there. Four house sparrows aren’t enough. It has to be five.
Does your feeder do weight conversions? Post a comment and let me know.
(photos by Chuck Tague)