Which preposition to use with wader

of Occurrences 2%

The bareness of her limbs may perhaps shock our notions of propriety at first, for, being a mud-wader of necessity, like the stork and the heron, she girds her garments about her very tightly indeed; but this only sets off her wonderfully erect and athletic figure, while her well-set head looks all the nicer that it has no covering except her own neatly-bound hair.

on Occurrences 1%

Besides the usual waders on the reef, I found great numbers of doves and honeysuckers, and, among the mangroves, fell in with and procured specimens of a very rare kingfisher, Halcyon sordida.

Which preposition to use with  wader