# Do birds pee?

**URL:** <https://boards.straightdope.com/t/do-birds-pee/116332>\
**Category:** Cecil's Columns/Staff Reports\
**Created:** [June 28, 2002, 5:26am UTC](https://boards.straightdope.com/t/do-birds-pee/116332 "2002-06-28T05:26:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![DaveoRad](https://avatars.discourse-cdn.com/v4/letter/d/bcef8e/32.png) [@DaveoRad](https://boards.straightdope.com/u/DaveoRad)\
**Post date:** [June 28, 2002, 5:26am UTC](https://boards.straightdope.com/t/do-birds-pee/116332/1 "2002-06-28T05:26:22Z")

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[http://www.straightdope.com/mailbag/mbirdpee.html](http://www.straightdope.com/mailbag/mbirdpee.html)

Thanks, Colibri, for this article.

Quote: “A bird dropping usually contains both white uric acid crystals, and a concentrated mass of digestive wastes such as insect cuticle or seeds.”

That “concentrated mass”, though Colibri didn’t spell this out, would be the darker stuff found in bird droppings – the avian equivalent of fecal matter, or so I’ve read. I’ve never researched this personally, though once in high-school science class my lab partner and I did examine rabbit pellets under a microscope. (This was a serious scientific experiment and actually fascinating – the rabbit had been eating something that looked like grass.)

Hey! How about lunch! 😃