The pink tree in bloom is called Roble de Sabana, also known as the Pink Trumpet Tree and Pau D'Arco. Some may recognize the last name as a natural medicine. This shot was taken of the neighboring farm across the river. I think these trees are part of their living fence because fence posts are seen in the lower left corner.
I probably post a picture of this tree every year on my blog. I love the flowers. They remind me of the cherry blossoms in Seattle.