This is the page it is getting the info from : http://poohadventures.wikia.com/wiki/Spike_the_Dragon
Just as I post this I have clicked the “improve this answer” on bing and corrected it to the mlp.wikia.com link
I just thought is was funny that this came up, even though Google has the right result.
I don’t think the result will be fixed right away though, it looks like it has to be voted on on the Bing Distill.
If you have a MS account and want to join I think you can click the “Publish” button on this page :
http://www.bing.com/distill/answer/detail?answerID=4746583