Yesterday I did the Woodland Creatures mini series GC782Z2, GC782ZE, GC782ZV & GC78303 to complete this challenge, or so I thought. Now that I come to claim the find I realise that only 365 dates were required and that I must have been qualified for quite some time! Oh well, that's life and in any case the caches were needed as I work towards completing my Multi and Unknown daily grids, not that that's going to happen until at least November.
PS. Screen shot of Project GC output attached.