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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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    Ideal drill bit for entrance holes

    We are on the edge of bluebird territory so will be interesting to see if we even get any action. No shortage of house sparrows though! Thanks for the resources. I’ll check them out.
  2. P

    Ideal drill bit for entrance holes

    I decided to go with the forstner bit. $20 Freud at the local HD. Those speed bore bits are really dangerous in a drill press. They will throw the wood right at you. Not designed for high RPMs. Will report back, but I think it’s going to be the way to go as they cut very clean.
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    Ideal drill bit for entrance holes

    Yes 1.5 is too large for chickadees. The right size for bluebirds. I’m building both. Copper hole guards are great and they are like $3. Check online there are a few dealers. My local Audubon shop carries them. They look nice too!
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    Ideal drill bit for entrance holes

    Thanks all. I have copper hole guards. I understand that all will technically work. 1.5” is a size that’s slightly large for a spade or forstner but on the smaller end for a hole saw. I also dont have that size in any of my bit or hole saw collection, so figured if I have to buy one might as...
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    Ideal drill bit for entrance holes

    Hello. First post here. My daughter and I are going to be making a bunch of nest boxes with some leftover cedar I have. Bluebird & chickadee. Question for you all - do you prefer to use hole saws, spade bits or forstner bits? I have a drill press. My thought was to use a forstner, but...
  6. P

    Hello from CT!

    Hi all, Im a backyard and seashore bird nerd. I came here to learn about optics, but there's lots of other interesting stuff to read here. Look forward to poking around. Cheers, Bruce
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