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You are here: Home / News / Why You Never See a Bird ‘Lifting It’s Leg’ to Pee

Why You Never See a Bird ‘Lifting It’s Leg’ to Pee

28 August 2024 by Alan

Which, co-incidentally is the reason why Bird Poop turns White.

Put it another way, we have all seen birds poop, but no-one has seen a bird pee.

Birds do pee but not the way mammals do.

When mammals urinate, we expel nitrogen-rich waste like urea. Birds don’t do that, though, so the nitrogenic waste has to find another way out.

The white stuff in the bird poop is made of uric acid which, according to the Royal Society for the Protection of Birds, is “the bird equivalent of human’s urine.” In effect, birds do all of their waste expelling in one fell swoop — and what we think of as bird poop is probably better articulated as both poop and pee, just combined. The white part is the pee, the chunky brownish-yellow parts are the poop. The white is also why bird poop sticks to our car windows for much longer than one would otherwise expect.

Why it’s white but not, say, yellow, has to do with how birds process waste without losing too much water.

But why not pee and poop separately? Basically, it’s because they only have one way for waste to exit, called the cloaca, and both the intestinal tract and urinary tract lead there. As both types of waste exit through the same door, the evacuation happens at the same time. While the two meet, they don’t mix. Because the acid and poop are expelled at the same time from the same opening, but from two different bodily systems, they don’t have much time to blend, and you get a bird dropping with two distinct parts.

So the next time the blue bird of happiness drops a parcel of luck upon your head you will be quite correct in referring to it as a Poopee!

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Category: NewsTag: Bird Poo

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Reader Interactions

Comments

  1. Danqqqqq

    1 September 2026 at 8:50 am

    Interview with a pirate:

    There was a pirate who had agreed to do an interview with a local tv station. The reporter was very courteous and professional, giving a bit of background as to the pirate\’s business. She then began interviewing him.

    \”So Mr. Longbeard, are there any risks to your business? I see you have a peg leg- how did that come about?\”

    \”Well, y\’see I were sailing along the coast of South Africa, looking to plunder some locals when as I boarded the small boat from the ship, a great white shark came up and got my leg clean off. \’twas scary yes, but thus is the life of a pirate.\”

    \”Wow, that is pretty scary- well, how about your hook? What happened to your hand with that?\”

    \”Oh now that\’s quite the tale, y\’see I were fighting a rival pirate, and we had locked swords. We had been fighting for a few hours, and were both terribly fatigued. I had a bit of exhaustion and confusion, and when I went to block one of his sword blows, I met him with me hand instead of me sword. Took it right off, but it shocked him so much I managed to get him back pretty good and have him submit. So the hook hand was given as a replacement.\”

    \”Wow. Simply fascinating. Now, what about your eye patch? How did that happen?\”

    \”Well, one day, a seagull was flying overhead, and I looked up. It pooped right in me eye.\”

    \”… Well wow. I must admit, I wouldn\’t think just seagull poop could damage the eye that badly.\”

    \”Oh, I forgot to mention… it were me first day with the hook.\”

  2. Winter Underdog

    26 August 2026 at 5:05 pm

    Hoezit /Howzit – How is it going? How are you? A common greeting which is often used instead of “hello” and “how are you?” It combines the two phrases into a simple, “Howzit”, thereby saving time.Example: “Howzit my bru!”

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