• Mamertine@lemmy.world
    link
    fedilink
    English
    arrow-up
    15
    ·
    1 year ago

    Birds have gizzards aka crops. They need to eat rocks to be able to break down food. Humans chew food with their teeth. In a bird that step happens in the gizzard. The rocks grind the food so the intestines can absorb nutrients.

    The easiest way to get rocks is to pick them from the side of the road.

    • variantsOP
      link
      fedilink
      English
      arrow-up
      9
      arrow-down
      1
      ·
      1 year ago

      wow I didnt know that, makes a lot of sense and I always wondered why birds would land in this area when there is a big field right over the divider