OWLs (Small Pelican-like vehicle)

Hey so I was just wondering, why are there no wiki pages or any information about OWLs???

EXtract from Halo:Last Light gives a little description of what they are:
“Resembling a slightly smaller, lightly armored version of a Pelican, the most obvious differences were the Owl’s cloud-gray finish and its downward-curved wings.”

Can we get more information please?

Here you go.