I did this sketch based on the quote. It’s quite funny! The guy in the sketch is not really Chorley…
fossick \ FOS-ik \ , verb;
1. To search for any object by which to make gain.
2. Mining. To undermine another’s digging; search for waste gold in relinquished workings, washingplaces, etc.
3. To hunt; seek; ferret out.
Chorley ate and watched pigeons fossick for crumbs among the iron table and chair legs.
— Elizabeth Knox, Dreamhunter: Book One of the Dreamhunter Duet
An Australian coinage, fossick’s derivation is uncertain, but may be an alteration of fuss.