Your sentence is mostly correct but could be made clearer with a slight adjustment. Here's a corrected version:
"A Namaqua sandgrouse soaks up water with its feathers and carries it back to its thirsty chicks."
Explanation:
- Using "with its feathers" makes it clearer how the bird soaks up the water.
- Everything else in the sentence is great! It tells us about the bird helping its thirsty baby birds.
Remember, small changes can make your sentence easier to understand!