The bird is almost certainly a Northern Shrike, which is regular during the winter, while Loggerhead Shrikes are migrating south and are very rare in the first place. They are similar to Loggerhead Shrikes so I can't tell with certainty from the picture, but given the time of year it should be a Northern Shrike. The hook on the bill can also be seen, which would indicate a Northern Shrike.
/Thomas