El pájaro muy alto, rosa y blanco es el flamenco.
Explanation:
1. The correct word to complete the sentence is "El flamenco."
2. A flamenco is a bird known for its tall stature, pink and white feathers, and distinctive appearance.
3. In Spanish, "flamenco" refers to the bird species known as the flamingo.
4. Flamingos are known for their vibrant colors and long legs, making them easily recognizable.