Historical clue formulations

• Graceful bird — 2026-08-04
• Bird that Zeus disguised himself as in a much-told Greek myth — 2026-02-27
• Epitome of graceful beauty — 2025-12-28
• Aquiline : eagle :: cygnine : ___ — 2025-11-30
• Graceful bird in a pond — 2025-10-13
• Long-necked bird with a "knob" on its beak — 2025-08-18
• One of seven in a holiday song — 2025-04-12
• Black and/or white water bird — 2025-02-18
• ___ song (final act) — 2024-06-25
• One of seven "a-swimming" in a Christmas carol — 2024-05-27
• Gift on the seventh day of Christmas — 2024-04-21
• The ugly duckling's mother — 2023-12-14
• Word with song or dive — 2023-04-25
• Cygnus constellation, with "the" — 2022-04-27
• Graceful bird — 2022-04-03
• Bird symbolizing grace — 2021-12-13
• Lead-in to son or song — 2021-05-15
• ___ song — 2021-04-09
• The ugly duckling, eventually — 2020-12-15
• Former ugly duckling, in story — 2020-04-27
• Equine : horse :: cygnine : ___ — 2019-11-10
• Bird that usually mates for life — 2019-04-23
• Lake or dive preceder — 2018-02-28
• ___ song — 2017-07-23
• What the Ugly Duckling became — 2017-02-13
• The Ugly Duckling, actually — 2016-05-30
• A cygnet is a baby one — 2016-05-11
• Graceful avian swimmer — 2015-07-20
• Word before dive or song — 2015-05-12
• Bird in a Hans Christian Andersen tale — 2014-12-30
• Ugly Duckling, eventually — 2014-09-16
• Pen, e.g. — 2014-06-11
• Graceful trumpeter — 2014-04-20
• Pavlova portrayed one over 4,000 times — 2013-09-27
• Pond swimmer — 2011-11-21
• Zeus' disguise when fathering Helen of Troy — 2011-08-07
• Bird in a bevy — 2011-07-26
• Constellation next to the Dragon, with "the" — 2010-09-02
• Trumpeting bird — 2010-07-20
• Trumpeter with a prominent neck — 2009-07-25
• Kind of song — 2008-05-24
• Graceful swimmer — 2008-01-07
• Ugly duckling, eventually — 2007-08-06
• Symbol of gracefulness — 2007-02-24
• Sweet ___ of Avon (epithet for Shakespeare) — 2006-12-02
• Pen, e.g. — 2006-09-02
• "___ Lake" — 2006-04-24
• Zeus, in another form — 2005-05-20
• Bird on a lake — 2005-04-18
• Epitome of grace — 2005-03-03