A protective 5 cm square stainless steel plate to protect the entrance hole to a nestbox. A nestbox plate will prevent larger birds and predators from enlarging the entrance hole to gain access.
You can also use the 25 mm plate to reduce the size of 32 mm nest box entrance holes, making them suitable for small birds such as blue tits.
Nest box not included
- Which size nestbox hole for which bird?
Blue tit, coal tit, marsh tit
- Width 5 cm Height 5 cm Hole 25 mm
Average Customer Reviews
Thanks for your review. The RSPB recommends hole size of 25 mm for blue tits. Blue tits will feel safer and more comfortable in a hole that is around 25 mm, as a hole that is a slight squeeze for them ensures that nothing larger can enter the nest.
Further information can be found http://www.rspb.org.uk/advice/helpingbirds/nestboxes/smallbirds/siting.aspx.
Very effective deterring bigger birds.And another bonus,the Blue tits never complained about any sharp edges !!
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