It is odd, yeah.

I'm guessing both humans and LLMs would tend to get the "vibe" from the pelican task, that they're essentially being asked to create something like a child's crayon drawing. And that "vibe" then brings with it associations with all the types of things children might normally include in a drawing.

If you were a pelican, wouldn't you want to go cycling on a sunny day?

Do electric pelicans dream of touching electric grass?