Birds won't come near it

The birds almost land on it but they fly off when they see us. One would flutter his wing on the unit, causing seeds to fall out. After I hung it and came in the house, notices the bottom seam had separated. At least the bird that swats the container, cause the seeds to fall out in the opening. Difficult for me to hang as I'm unsteady. I had to hang it HIGH, because I didn't think it would be secure on the screen. The seeds are attracting ants.

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