Lighter Shearwig

The Lighter Shearwig is a special variant of Shearwig that sports an orange/tan coloration with green eyes and blue wings. It behaves similarly to your run-of-the-mill Shearwig except that it glows faintly and also has the option of spewing forth a line of fire. Therefore, Red Pikmin are highly recommended in battle against these bugs unless you want it to be a truly deadly struggle. Some Lighter Shearwigs combust when defeated, and sometimes these explosions can be as deadly as bomb-rocks. Even dead Lighter Shearwigs should be handled with care long after they've been killed.

Portal- Kombat

Trivia
In Olimar's notes for the Fiery Blowhog, he says to treat a dead specimen with great care. The Lighter Shearwig is just the same.