I was there today looking for the gyr but no luck. I saw a pic of the bird from this morning. Great shot of an adult dark phase gyr. This was near the Oberly rd /Snyders rd junction.
A bunch of us saw it last weekend sitting on a cell tower, but it wasn't a good look.
For what its worth, myself and another birder on separate occasions thought we saw something quite gyr like at Merrill creek. If it was a gyr it was a different color phase-grayish/tannish but immature. The date was about a week and a half ago-after the adult was seen there.