Five days - and yeah, most of the best wildlife was really packed into three of them, the day in the Golden Sands woods, the inland day where I had a guide who could point out the eagles, and the Beloslav day which was a very long hard day of walking but was just wildly good (pun partially intended). I think the thing with Beloslav was the range of terrain, I went from the mini-desert at the stone forest through a lot of scrub and rocky dry woods down to a proper wetland. Also, the Black Sea coast in winters and springs does tend to be exceptionally good for birds in general, it's a very focused route for migration.
And yes, I've definitely found that if I want both macro and zoom I end up needing two cameras.