I just had a flyover sighting of a white-phase great blue heron in South Knox Co. It flew out of the east heading toward the river. I got a good look, albeit without binoculars, and the size, posture and wingbeats were all consistent with GBHE. I did not, however, have the checklist of leg and bill colors fresh in mind to distinguish between GBHE and great egret, so now I'm wishing I had taken note of those things. It did not have the high-contrast black legs of a great egret, but that's all I can say for sure. Having visited Naples, FL several times in recent years, I have seen a "great white heron" there as well as many great egrets. I'm fairly confident in my ability to recognize both birds, but obviously we are a long way from where white great blues are common. Knox area birders should be on the lookout for this bird! Rikki Hall Knox Co