Samuel Adams Guernsey birth lookup

[wdytya]

I would be very grateful if someone could do a lookup for me on....... Samuel Adams born 1875/1876 in Guernsey. His father was possibly named Simeon and might have been in the butchery trade.

Is there any internet sites for BMD's and census records for Guernsey?  Perhaps he is on the 1881 census??

Many thanks