May 17, 2017 | Featured in: Watching Backyard Birds, June 2017

Weird Things to Feed Birds: Eggshells

Want to offer more to your backyard visitors than seed and suet? Try eggshells.
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Here's a handy backyard tip: Birds need calcium to produce eggs. They get it from their diet, and they don't store a lot in their bodies. If a laying female doesn't obtain enough calcium, she could experience decreased eggshell thickness, reduced clutch size, or even a lower hatching rate.

Providing eggshells helps female birds replace calcium lost during egg production and laying. Save your eggshells; dry them in the oven for 10 minutes at 250 degrees; crumble them and spread the pieces on an open spot on the ground, or toss them on the roof.



About Bill Thompson, III

Bill Thompson III is the editor of Bird Watcher's Digest by day. He's also a keen birder, the author of many books, a dad, a field trip leader, an ecotourism consultant, a guitar player, and blogger.

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  • Has anyone heard of a Carolina wren opening doors? Our cat brought us a wren late last night, thought it was a goner but put it in our parakeet's old cage that has the sliding vertical doors. The wren gained strength, started to bop around the cage. We wanted to release it in the morning to make sure we could see it escape to safety. I put the cage in a quiet bathroom and went to bed. I woke up to the sound of fluttering wings. Sure enough the wren somehow got out, crept under the bathroom door and was trying to get out. I caught it with a light blanket and released it outside. It promptly flew away, very strong. I went back to the cage and am just dumbfounded and impressed, no way out unless it somehow pried the doors open. I was just relieved that it was ok. I can't believe it survived being carried around and batted about like a toy by the cat!Thoughts?
    by Beth Andries, Wed, 27 Sep 2017
  • cool
    by Luke Tansey, Sat, 16 Sep 2017
  • how can i get Caterpillar and other insects at home or buy them etc etc etc for my quails any suggestions earliest res thanks in advance
    by asif, Mon, 11 Sep 2017
  • I use Brita (filtered) water, cane sugar (hoping it's nonGMO). Heat water in pan, prep sugar in a glass, heat-proof measuring cup. 1 cup sugar, add hot water to make 2 cups total or so. Stir. Cool. Store in jar (glass or plastic) in fridge. Add to mix to feeder as needed, add more water to make ~3 parts water, ~1 part sugar. maybe more sugar as birds arrive I spring, more water in summer when it's hot. I make it concentrated 1 to 1 so it's easier store.
    by Debby Stark, Fri, 16 Jun 2017
  • Keep forgetting to do this. I like the roof idea!
    by AppalachiaTori, Wed, 24 May 2017