The ducklings were reunited with their family.
Saugus police said Rashad Deihim, 19, of Saugus, turned himself in to Newburyport police Saturday.
Several police officers are at the school following an unknown Tuesday morning threat.
A paraglider died Saturday a short time after he was pulled out of the frigid water off Plum Island.
Newburyport police are trying to find two women they say passed counterfeit $100 bills at a local Market Basket.