Feel dirty by asking... Generic MPPT solar CCs?

Just go by the shadow on the ground lining up with the panels. Main problem is I need a loose string along just above the top to keep all the robins from perching there, pooping down the panels. They don't use the one on the roof--too far from the worms. But a seagull got that one with a big ugly splatter one time. Yuk.

Now if MPPT gave off a falcon noise.....