Christian Observances: Saint Joseph (Western Christianity; if this date falls on Sunday, the feast is moved to Monday March 20) Saint Joseph's Day (Roman Catholicism and Anglican Communion) related observances: "Return of the Swallow", annual observance of the swallows' return to Mission San Juan Capistrano in California

The cliff swallow or American cliff swallow is a member of the passerine bird family Hirundinidae, the swallows and martins. The generic name Petrochelidon is derived from Ancient Greek petros meaning "rock" and khelidon "swallow", and the specific name pyrrhonota comes from purrhos meaning "flame-coloured" and -notos "-backed".

Christian Observances: Saint Joseph (Western Christianity; if this date falls on Sunday, the feast is moved to Monday March 20) Saint Joseph's Day (Roman Catholicism and Anglican Communion) related observances: "Return of the Swallow", annual observance of the swallows' return to Mission San Juan Capistrano in California

March 19

Christian Observances: Saint Joseph (Western Christianity; if this date falls on Sunday, the feast is moved to Monday March 20) Saint Joseph's Day (Roman Catholicism and Anglican Communion) related observances:

The cliff swallow or American cliff swallow is a member of the passerine bird family Hirundinidae, the swallows and martins. The generic name Petrochelidon is derived from Ancient Greek petros meaning "rock" and khelidon "swallow", and the specific name pyrrhonota comes from purrhos meaning "flame-coloured" and -notos "-backed".