Historical clue formulations

• Marsh bird — 2018-07-21
• Marsh bird — 2008-12-13
• Short-billed rail — 2002-04-24
• Short-billed rail — 1998-07-03
• Carolina rail — 1997-02-25
• Marsh bird — 1996-05-30
• Marsh bird — 1995-06-02
• Small rail bird — 1995-02-13