Today a wandering dog bite my hen and i save the hen from that dog.i washed my hand after touchng the hen.no wound in my hand.do i need to take rabies prophylaxis. dont know whether the dog has rabies or not.i only touched hen.do birds spread rabies?

Doubt it: Birds do not spread rabies. If the dog was rabid & you had a bite or open wound that saliva entered you might have an exposure. I would also contact your local health department which follows any regional rabies activity & keeps tract of prophylaxis supplies. If there is no rabies in your region it would be less of an issue overall.