The White-necked Jacobin is a pretty big hummingbird, that likes to move pretty fast around feeders and flowers, making it difficult to follow for in-flight pictures. Its color pattern is unmistakable among Costa Rica hummingbirds and glows in good light. The belly is white, while the head is metallic blue and the rest of the body is green; if seen from behind, the white patch on the neck can be spotted. They are territorial and won’t be afraid of putting a fight with other hummingbirds that approach the feeder they are visiting. The female is not nearly as colorful, but it is beautiful as well.