Using Eggshells to Provide Extra Calcium for Nesting Birds

Nesting season is fully upon us and the birds, especially females, need extra calcium.  Studies also show that birds who rob nests for eggs, like Bluejays, are seeking the extra calcium contained in the shell along with the protein inside the eggs.  I have been putting out crushed chicken egg shells in the spring and find ready customers.  Today we had the first of our asparagus in a frittata for lunch and I had some shell for the birds.  I microwave them first to kill any possible salmonella bacteria.  (I had 5 shells and put them in for one minute.)  I then crush them into various sized fragments and put them outside on the ground by the bird feeder.  I think providing the birds with calcium in this way reduces the nest predation for eggs by other birds.

Eggshells give birds needed calcium for egglaying.

Eggshells give birds needed calcium for egglaying.

Advertisements

1 Response so far »

  1. 1

    jmgoyder said,

    Informative – thanks!

    Like


Comment RSS · TrackBack URI

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: