Historical clue formulations

• Parliament : owls :: raft : ___ — 2023-06-23
• Evansville baseball team or Erie ice hockey team — 2021-12-30
• Frolicking river mammals — 2020-11-04
• Predators of crayfish — 2019-07-24
• Bewhiskered mammals — 2018-09-26
• Mammals with webbed feet — 2017-09-10
• Whiskered animals — 2016-10-28
• Frolicking mammals — 2016-09-06
• Some pups — 2016-02-13
• Mammals that congregate in groups called "rafts" — 2015-05-30
• Bewhiskered frolickers — 2013-06-04
• Whiskered beasts — 2013-05-23
• Bewhiskered animals — 2013-01-03
• Fun-loving fishers — 2012-11-16
• Warren : rabbits :: couch : ___ — 2010-06-06
• Frolickers by a stream — 2010-05-09
• Stream bank sliders — 2008-10-19
• Bewhiskered animals — 2006-10-15
• Blubberless marine mammals — 2006-05-14
• Bewhiskered fauna — 2004-05-14
• Aquatic animals — 2003-11-17
• Abalone eaters — 2003-09-24
• Frisky critters — 2002-03-07
• Frolicking fauna — 2001-11-17
• Fun-loving fishers — 2001-05-27
• Zoo showoffs — 2000-03-07
• Bewhiskered creatures — 2000-02-26
• Sliders on stream banks — 1999-09-08
• Web-footed animals — 1999-08-05
• Water rompers — 1999-01-17
• Frolicking animals — 1997-05-19
• Zoo showoffs — 1995-08-13
• Furry swimmers — 1995-03-24
• Stream animals — 1994-11-08