The mystery bird from yesterday’s Teaser was a toughie! As far as we could tell at first, it was a young Black-crowned Night Heron — one of three we saw at DeKorte that day. We had never seen Yellow-crowned Night Herons (adult or juvies) at DeKorte, so when we saw them we assumed they were BCNHs. Never assume! It’s makes an ass of me and me, or something like that.