Hoover Ospery Nest Plus 2 Strangers?

I got down to Hoover Reservoir Osprey Nest Sunday morning about 9:30. This sight is on the south side of Galena where Columbus Road/Old 3C/Sunbrury Rd./ Front Street come together.

Link to Google map: Galena Osprey Nest

Every thing was quite for 10 minutes, then the male in the tree just west of the nest started squawking, a unknown osprey crossed over the nest and proceed west to the trees near the shore. Another 10 minutes go by and the males squawks again, this time another unknown osprey goes north up the river! All the while I can still see the other on the west bank and the two at the nest.
2 + 1 + 1 = 4 ! Maybe if one of they is a male, we could coach it up to Hogback Road.

After watching the osprey for a while I turned left onto Columbus Rd./Old 3C to Wiese Road, about a third of a mile. Wiese Road dead ends with a couple of spaces to park. You can walk the west shore of Hoover maybe a mile or two. It's a overgrown, tree lined lane with lots of birds.

Frank Germann