So, this is something I do. It helps prevent birds from raiding eggs from other nests, since they'll have enough calcium! Make sure you properly sterilize any shells. Also, dried corn also has a decent amount of calcium.

Give #NestingBirds a Calcium Boost By Saving Your Leftover #Eggshells

Your breakfast discards can serve as vital nutrition for females as they make their own eggs.

By BirdNote
Published May 13, 2019

"Birds’ eggs are among nature’s most elegant creations. But they’re not easy to make.

"This American Robin will lay one egg per day for three to four days.

"To make her eggs, the female robin has to use a great deal of calcium. But she can’t just pour herself a nice big glass of milk. She has to find her calcium in nature. And it can be tough to find enough.

"But we can help. During the nesting season, we can give the birds that visit our homes some of that crucial calcium.

"Start off by putting calcium-enriched seed and suet in your bird feeders.

"For the many species that don’t eat seed or suet—like robins—you can give them leftover chicken eggshells instead.

"Rinse the shells off in the sink, spread them out on a cookie sheet, and bake them in the oven at about 250 degrees for 10 minutes. You just want the shells to dry, not brown. When you’re done, crush them up."

Read more:
https://www.audubon.org/news/give-nesting-birds-calcium-boost-saving-your-leftover-eggshells

#SolarPunkSunday #Birds #FeedingBirds #Caretakers #Wildlife #AnimalProducts

RE: https://mastodon.social/@arstechnica/116108759807158445

Which #geochronological #method helps to determine the #age of #sediments as precisely as possible in order to reconstruct biotic, ecological, and #climatic relationships over the course of geological eras? R. T. Tucker et al. (2025) were able to precisely date the #eggshells of non-avian #dinosaurs using a novel LA-ICP-MS U-Pb #calcitedating method. This enabled them, for the first time, to date the Upper Cretaceous strata of the #GobiBasin (Mongolia) radioisotopically.
©This text#StefanFWirth

I use eggshells as a soil enhancer. I also sterilize the shells (300 F for 30 minutes) before grinding them into a fine powder (using a mortar and pestle).

Using #Eggshells as #Lime in #Soils

Cracking the Code: Can Ground Eggshells be Used as a Liming Source?

April 2, 2025 by Leon Martinez

Excerpt: "Factors Affecting Eggshell Liming Efficacy

The efficacy of eggshell liming depends on several factors, including:

- Particle size: Finely ground eggshells are more effective at raising soil pH than coarsely ground eggshells.
- Application rate: The amount of eggshells applied to the soil can impact their effectiveness as a liming source.
- Soil type: Eggshell liming may be more effective in certain soil types, such as acidic soils with low calcium content.

Practical Applications of Eggshell Liming

If you’re interested in trying eggshell liming, here are some practical tips to get you started:

- Collect and dry eggshells: Collect eggshells from your kitchen or local farms and dry them thoroughly to prevent mold and bacterial growth.
- Grind eggshells: Grind the dried eggshells into a fine powder using a coffee grinder or mortar and pestle.
- Apply eggshells to soil: Mix the ground eggshells into the soil at a rate of 1-2 cups per 10 square feet.

Conclusion

While ground eggshells show promise as a liming source, their effectiveness depends on several factors, including particle size, application rate, and soil type. As with any liming material, it’s essential to monitor soil pH and adjust application rates accordingly. With proper use and application, ground eggshells can be a cost-effective, eco-friendly alternative to traditional liming materials."

Read more:
https://homediningkitchen.com/can-ground-eggshells-be-used-as-a-liming-source/

#SolarPunkSunday #SoilAddendum #Gardening #ZeroWaste #Reuse #SoilHealth #AnimalProducts

Khám phá mẹo hay sử dụng vỏ trứng và cơm nguội để làm vườn, vệ sinh nhà cửa hiệu quả, giúp tiết kiệm chi phí và sống xanh hơn! Biến rác thải thành trợ thủ đắc lực cho ngôi nhà bạn. #MẹoHay #VỏTrung #CơmNguội #LàmVườn #VệSinhNhàCửa #SốngXanh #UsefulTips #Eggshells #LeftoverRice #Gardening #Cleaning #EcoFriendly

https://vtcnews.vn/meo-hay-voi-vo-trung-va-com-nguoi-ar967246.html