You say that in jest, but seriously, they are parked at the same spot. The two rails, the two sora, the wrens and even the bittern are all seen at the same spot. Since that is the only puddle of water it attracts them all. As for telling the rails apart ... dems awl da syme, dems awl alike! I went there again this morning 7 a.m. until 10:30 and still no bittern. It appeared late yesterday morning, after I had left and then again in the evening at about 6:15 according to another Charline who got good shots. I'll never get the bittern. Maybe I should change my name to Charline and try again.