At the Upper Cliff of Bolton Notch the signs are posted.
"We try to alway avoid the areas that they are nesting in," said Thomas Eastwick.
But just across the way at Bolton Valley the coast is clear for now.
"I don't think they are here. We've had a couple visits and haven't seen them yet," said Margaret Fowle, with Audubon Vermont is out checking to see if Peregrine Falcons are nesting up in the cliffs.
Those occupied by these birds will be closed for their own protection.
"That repeated disturbance could cause the birds to abandon the site so that they would want to stay here and take care of their young."
But you could be keeping yourself out of harms way too.
"Falcons are very territorial. They tend to defend their territory aggressively, and so they can swoop down at a climber or hiker and people have been injured by falcons protecting their nests," said Fowle.
Climber Alden Pellet knows first-hand why it's best to obey the signs.
"I climbed a route that was not often climbed- pulled up on a ledge the Peregrine was right there. It took off then came back around, so put it in gear and go the heck out of there. Left some gear behind- got out safely."
But he said there's planty of good climbing out there even if the birds have taken over.
"Certainly climbers get a little disappointed if your favorite climb is closed for the season, but I think most climbers are good about respecting the closures."
Climbers said they'd rather be turned around than to be placed in a compromising position.
"I don't really want to get attacked while I'm out here,"said Nico Fitzsimon.
BOLTON, Vt. - Several cliffs and trails are closed to protect a certain bird of prey.