ETCD1 1 Starling cover crescent door

Article number: ETCD1
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Use Erva starling cover crescent doors on Purple Martin houses to prevent intruders from taking over. Purple martins return to the same colony every year, but if starlings move in while the martins are gone, you may lose the martins forever. The crescent shape of these door covers allow martins access, but deters starlings that prefer larger round holes.

6x6. Hole Opening is 2.75" at the widest point and 1.125" from top to bottom.

*USE ONLY ON ENLARGED COMPARTMENTS* Because of the restricted size of the starling resistant entrance, the birds have little room to feed babies that try to stick their little heads out for food; if the martins were to use mud on the inside at the entrance, as they often do, they could easily barricade themselves inside; and some authorities feel it's too restrictive for the adult birds to go into a 6"x6" compartment through a starling resistant entrance — that additional room would be advantageous for the birds.

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