Which preposition to use with ortolans

of Occurrences 1%

The larger ones are sent to London and potted, where they are by many as much esteemed as the ortolans of the continent.

with Occurrences 1%

When totally ruined, having spent near 150,000 l., a friend gave him a guinea to keep him from starving; and he was found in a garret soon after roasting an ortolan with his own hands.

Which preposition to use with  ortolans