I have a tarantula and she spun a really thick web then rolled it up in a sort of ball what is she doing?

Question

We believe that she is a Oklahoma Brown tarantula and she has also pushed all the bedding in her cage into her water bowl and one side of the cage.

Answer 1

eggs perhaps?

Answer 2

I am guessing you mean the Texas brown, species Aphonopelma hentzi.

http://bugguide.net/node/view/55039

That definately sounds like egg laying behavior.  I am guessing you just got the tarantula wild caught.  

She will be making a lair for her to guard the eggs.  Most breeders take the eggs away and put them in an incubator specifically designed for tarantula eggs because some species tend to eat the eggs.  I am not sure if you plan to hatch them or turn the spider and her eggs loose (if it is a local caught species, don't do it otherwise).  Spiderlings can be a hassle, especially since tarantulas will lay eggs into the thousands.

I strongly suggest you get The Tarantula Keepers Guide by  Stan and Marguerite Schultz.  It has lot of info on how to breed spiders and raise spiderlings along with all kinds of info on keeping, handling, and wild catching tarantulas, plus a lot of info on tarantula anatomy, life cycle, and taxonomy.

Answer 3

if its a little white ball , it would be tarantula eggs

Answer 4

she is probaly laying eggs. keep an eye on her then you might see little mini trantulas. be careful they might get out of the cage.

Answer 5

If not eggs, it could just be a pouch with its left overs (like food parts).

Answer 6

She is probably laying eggs. do not touch the ball and try not to move the cage much. the eggs will hatch soon.