lagrange's list of Bible contradictions, like most others, isn't even based on the Bible. The Gadarene pigs, as
pinky64 pointed out, weren't raised for Jews to eat. The other two "Bible contradictions" are really contradictions between the Bible and later traditions--the Bible doesn't say that Jesus was born in the winter and it also doesn't give the year that Jesus was born. Errors in dating from the 4th and 7th century are not Bible contradictions.
Even at the Skeptic's Annotated Bible, which is a more credible attempt, a fair number of the "contradictions" are based either on false generalizations or misunderstandings.
Some of the contradictions they point out (particularly regarding dating and genealogy) are legitimate, but a lot of others are erroneous. This page is like the skeptical equivalent of bad theology; their arguments are so poor that they weaken their own position.