How can I get rid of ravens?

Hi,
Crows and Ravens will pick off baby chicks and I would imagine they would go after smaller bantams.
Joe

These birds also despise HAWKS, and are a great alarm system for them. 

I wonder if they aren't just a small migration moving through, considering the season and all.  Maybe a bird expert can chime in on this.  I do know these birds are extremely smart, so I'm not sure how you could keep them away.

slingshot

Jenski is absolutely right--they are considered the smartest birds in the world (see PBS program). They will not tolerate a hawk and so serve as a good safeguard against them. I have considered putting corn out to attract them so they will protect my chickens from hawks. Ravens and crows are either the same bird or same group. Not that I am an expert but they are fascinating animals. The live in extended family units who all work together to raise the young. Scientists have demonstrated that they can identify individual human beings and know if they mean them harm. Consider them an ally.

They  are very usefull birds, no birds of prey will come close when they are around.

Ravens or crows, my birds are much more relaxed when they are around.  The chickens have learned the different vocalizations that the crows make and pay attention when the crows warn of a hawk or eagle. 
I don't have any baby chicks to worry about, so I do everything I can to attract, not deter the ravens and crows.  I even spread some scratch out in the field next to the coop to entice them.

Ravens have killed way more chickens in my yard than Hawks. The Cooper's hawk is deadly to chickens but not a plentiful as the Ravens.
I have seen Ravens chase Eagles off my property. Where I live, if you have Ravens you don't have Crows. Ravens don't like Crows.
Steller Jays are good warner's of winged predators around. Ravens are good warner's of Cougars around.

Ravens are also good predictors of cold weather coming. They will come and beg for food before a cold snap. I feed them.
I have seen them go in the hen house and take eggs from the nest boxes.

But if they see me with my slingshot they know to stay away from the chickens.

Ravens   They are relentless!  We were losing all our eggs to them, and we fixed that problem by adding a pop door to the hen house.  Fortunately we have a roo that runs them away from the birds, but they do dive bomb them and pick at their feathers.  I hate ravens!

I have a large (40+ members) murder of crows in my woods.  Personally I love crows as I had one for years as a child.  I've seen several of these crows join forces and chase a hawk away.  They won't tolerate hawks in what they consider their territory.  I haven't had any problems with them and they're certainly welcome to stay.

ETA:  What you have is probably crows if it's a flock.  Ravens don't flock, they're usually solitary and sometimes in pairs.  Crows live in large family groups.