New Caledonia

I’m thinking of going on a birding trip to New Caledonia early next month. I find that there are around 30 endemics or Melanesian spp I’d like to see* and from reading trip reports &c it seems that most of these can be found in Riviere Bleue National Park (where the Kagus are). My question is, if I went up to Park and camped there for four nights, birding around the Park and nearby, are there any endemics/Melanesian spp species that I would definitely miss? cheers — John Leonard Canberra