Thanks for posting this link, Alison. But when I clicked on it, I could not locate a webcam.
The link is the same for several webcams - Oak Creek, Pleasant Prairie, Valley Power, etc. Presque Isle is the third heading from the top, after the two Oak Creek nests. Pics are updated just once an hour - click on any of the times listed to see the pics.
There is ongoing activity at the nest, which is encouraging. Perhaps the falcons have a nest close by, and are using the nest box as a place to feed and/or as a lookout.
There was a pair at the nest today: