I was told I have 30 days get rid of my hens...Help!

Would be easier to help if we had a little more information on where you are. Butte county isn't real helpful.

First, why do they say you need to get rid of them?  Is it a county law that is being violated?   Some places have weird rules about how close to a home a coop can be.  Complaints from neighbors?

http://library.municode.com/index.aspx?clientID=16065&stateID=5&statename=California&CustomBanner=16065.jpg&ImageClass=L&cl=16065
most of the laws seem to be zoning issues.

We cant have them were we live but we are. I'm scared that will happen to us.

It is likely ZONING code, not an ordinance.  Of course you can apply for a permit or variance, but you apply to the county, not the city.  You can look online and see if they have maps indicating the different zones and see which zone your home is located in, then check the permitted uses and see if poultry is allowed.  You can also check the rules of construction.  It is common for all uses that are not specifically listed to be disallowed, but it is possible that your county is an exception to this.

You didn't really provide any location info, but here's the butte country code: http://library.municode.com/index.aspx?clientID=16065&stateID=5&statename=California&CustomBanner=16065.jpg&ImageClass=L&cl=16065

and a paragraph:

Accessory uses:

(1)
Those uses and structures normally associated with a single-family residential use and are in conjunction with or incidental to the residential use, including but not limited to, a garage, workshop, garden, private swimming pool, private tennis court, gazebo, spa, etc.

(2)
A guest house as defined by section 24-305.175.

(3)
Second dwelling unit subject to the requirements of section 24-280

(4)
Agricultural uses including:

a.Keeping and raising small animals for domestic use, including dogs, cats and household pets, poultry and other birds, bees, fish, worms and frogs;

b.The keeping of animals, subject to the animal maintenance requirements of sections 24-255 through 24-255.15, inclusive, of this Code;

I also found this:

Use permits required for more intense or commercial uses. On all parcels of property within zoning districts that allow livestock and are less than five (5) acres, a conditional use permit shall be required for:

(1)

The keeping of such animals (horses, cattle, swine, sheep, and goats) at greater densities than allowed pursuant to subsections (1) and (2) above.

(2)

The keeping of such animals, poultry and rabbits, for the purpose of sale of said animals or their products on a continuing basis.

You will note that the phrase "for the purpose of sale of said animals or their products" makes it specific. If you aren't selling on a  continuing basis, and you are within zoning districts that allow livestock you're in the clear. If not, you still aren't done for.

First, get the county to tell you exactly what ordinance or regulation you are in violation of. Insist on chapter and verse. Next get a judge to issue an injunction for a stay of execution while you file for a variance. This will give you some time.

Get letters from your neighbors and landlord stating their lack of objections to your flock. Take those along with any witnesses that you can convince to appear on your behalf before the relevant governing body (zoning board or county commissioners).

None of this should require a lawyer.