Oyster shell Grit

Oyster shell grit is full of calcium and all birds need calcium.

Take the Blue Tit for example.  There is about 0.6 grammes of calcium in a Blue Tits skeleton.

The amazing fact is that a Blue Tit needs about 0.5 grammes of calcium to lay a normal clutch of eggs so oyster shell grit is a useful bird food.

Blue Tit near my garden

A photo I took of a Blue Tit near my garden

We can help all  these  busy garden birds by putting out birdfood with oystershell grit in because it has calcium in it or using oyster shell grit on its own.

The first 30 days of a young birds life are important.  If they survive the first 30 days they have a good chance of surviving.

We can’t do anything about predators or the weather.  What we can do it provide bird food that helps the parent bird and makes the parent bird fit and strong  so she can  rear a healthy clutch of fledglings.


Have a good day!

P.S. Here is some more information about oystershell grit

2 thoughts on “Oyster shell Grit

  1. Barbara mayhew

    I wonder if anyone can help me please A crow is pinching all the bird food that I put in my bird table every day how do I protect the smaller birds they dont get a chance when bthe crow sweeps through many thanks

  2. Trish Post author

    Hi, I have this problem. I find people sort the problem out in different ways. I have heard of someone who puts cheap bird food in one part of the garden which the crows go to. then in another he has bird feeders that the smaller birds go to. This works for me in a small way.

    But I think if crows are determined they are difficult to stop. I think the only sure way is to get caged feeders.

    I know someone who actually stopped putting bird food out for a while to stop the crows and rooks visiting. I can’t do this as I still get smaller garden birds who seem frantic for the food.

    I have a meshed ground feeder which I use every day. It is is really good as the ground feeder is covered with plastic mesh. The smaller birds can get in, but the crows can’t. It just means the thrushes and blackbirds can’t get inside, so I still have to put food out for them. I do get coal tits, sparrows, chaffinches, blue tits going inside the meshed feeder though.

    For the blackbirds and thrushes I scatter food under a bush. I put a lot of cheese out for them and they seem to like it. Soon though I know the crows will find this food!

    Hope this helps. If not please contact me again. I will think about if there are other ways as well.

    You can get caged feeders delivered to your door if you want to browse through Haith’s or Garden Bird Supplies shop here on Bird Table News. Please let me know how you get on as the smaller garden birds are at a busy time of year .

    Actually one Yorkshire Gent said to me that Crows need food as well and all birds are God’s creatures and need feeding whether they are crows or wrens. This may be so but I just cannot afford to feed crows. They just eat too much and there are lots of them.
    On an upbeat note I don’t think the crow will visit all the time. Soon there will be enough food for them in the countryside and they should fly away from your feeders to the open fields. Best. Trisha

    I have hanging feeders as well, so sparrows, chaffinches etc go to these feeders. Trouble is a crow has found a way to get at this food as well. This is why maybe caged feeders are the only answer.

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