Wilson's Warbler

I thought this was a Pine Warbler but not really certain. In the description from the Texas Parks & Wildlife, it mentions white bars on the wings and I don't see any on the pictures of the bird that I took. Plus there is a black cap on the head. There are so many varieties of yellow warblers that it is hard to distinguish between some of them. After doing some research, it looks to be a Wilson's Warbler that has come from Canada for migration.