When looking at a calendar page for a particular date, across the top are three categories “taxa”, “observations”, and “life list firsts”. To the right of “life list firsts” are the first up-to-6 names. Beneath that list a button labeled “View All n” appears when there are more life list firsts than could fit in the list above.
But there appears to be an off-by-one bug here: On this page, there are 6 life list firsts, and all 6 names are listed. But there is still a “View All 6” button beneath the names. That button shouldn’t appear in this case.
I paged through my own calendar until I found another page that happened to have exactly 6 life list firsts, and the bug also occurs there. I presume it happens for every page with exactly 6 life list firsts, though I stopped looking after finding the 2nd example.