UPDATE, 12:20 p.m.: After making its way back to the school yard and evading Animal Control and police, the coyote made its way up Norfolk to Hosmer Street. At some point in that trip, it was hit by a vehicle and wound up cornered in a rear yard, where it was captured.
Boston Police are monitoring a coyote that's been sauntering up and down Blue Hill Avenue by Walk Hill Street this morning. Around 11:30, the Mildred Avenue School was put into "safe mode" when the coyote entered the schoolyard - students were ordered inside, but otherwise went about their normal school day.
Animal Control, which normally no longer responds to coyote reports, arrived on scene around 11:40 to try to capture the wily coyote, which may have made its escape by way of the nearby Fairmount Line tracks (on a rocket-propelled train?).