I have three inches between guard and front of house. I have the guard 1 inch below the hole. The Dees have no problem flying under the guard. I have a camera in the box and noticed the female was roosting in the box during the day which from what I read indicates she has laid at least one egg. It’s hard to know if there are eggs, even with the camera because she covers them with fluff. Perhaps you can check the box and see if there are eggs, but don’t attempt to uncover them to look because they are very fragile. If the wrens are back, I would try the guard because for sure they will hijack the box. There are several youtubes on wrens guards and sialis.org has information. I love ths wrens, but they simply won’t allow other cavity nesters nearby. I suspect a wren could indeed fly under the guard, but getting sticks in there may be tough, but so are wrens. I’m keeping my fingers crossed since this is pretty much all I can do.
Sent from my iPhone
> On Apr 25, 2025, at 4:50 PM, 'Anna' via Birders <birders...> wrote:
>
> April,
>
> Thank you so much for this post, as I did not know there was anything I could do to protect a chickadee nest. Last year the wrens destroyed a chickadee nest in one of my boxes, and just this week a chickadee built a nest in one of my wren boxes. Are there measurement guidelines to follow? How far out from the box, and how far below the hole should it hang for it to be effective? So the chickadees will go under, but not the wrens? If I put it up now, will the chickadees abandon the nest? I don’t believe they have laid any eggs yet.
> Big thank you for any advice. And my chickadees thank you!
> Anna
> Hartland
>
>
>> On Apr 25, 2025, at 12:53 PM, 'April Campbell' via Birders <birders...> wrote:
>>
>> My cardboard and duck tape Wren guard.
>>
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>>
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