Ancestry UK has added the Bastardy Orders and Certificates for Warwickshire (1813-1869). The Bastardy Bonds are part of the Poor Law Records. The Parish was essentially responsible for the poor and needy of the Parish, but with the number of claimants on the rise, the church sought to have the fathers of illegitimate children found and named, making them financially responsible for the children they produced. These records are helpful in identifying fathers who might not otherwise be named on a birth or baptism record.
Here's the link to Ancestry's Bastardy Orders for Warwickshire http://www.ancestry.co.uk/warwickshire#furtherresearch
While this information was made available to me through Ancestry, I first learned about it on Mick Southwick's Bi-Gen blog.