Pilots report seeing UFO in sky off Ireland
cbsnews.com
cbsnews.com
Eventually he approached the location and he saw that they weren't fuel tanks because they started flying upward at an extremely rapid speed which shocked him.
There's some big hydro electric dams in this place and apparently these crafts are often seen above the power lines.
http://blogs.discovermagazine.com/badastronomy/2008/11/25/al...
But when someone looks through a telescope, she sees less than half a degree wide, often only a few dozens of arc minutes, so her field of view is less than 1/10,000 of the sky. It is unlikely she will recognize a fast moving object, plane or whatever.
I also seen something strange in mid-day with naked eyes, I thought it was an Iridium flare, but when I checked there was no flare possible at that place and time.