My Abel and Cole order came this morning and as I still can't get my head around the fact that Duncan likes to sample everything in sight, I carelessly left the box sitting out on the sofa.
It turns out Duncan likes raw fennel, and here's proof:
Last night I caught him as he took a bite of wood out of the corner of a bookcase. Yes, he ate it. I'm not sure what's worse from a cat point-of-view: fennel or wood. I would opt for the latter, but it is of course very possible I am missing a magically nutritious supplement in my attempts to avoid wood in my day-to-day food preparation and eating habits.