Historical clue formulations

• Wetlands waders — 2021-01-07
• Long-legged waders — 2020-12-04
• Waders with curved bills — 2018-08-13
• Birds with long, curved beaks — 2018-07-22
• Sacred birds of Egypt — 2018-06-14
• Objects of religious veneration in ancient Egypt — 2016-06-29
• Storklike waders — 2016-04-17
• Birds in hieroglyphics — 2016-01-30
• Once-sacred birds — 2015-03-04
• Nile birds — 2015-01-14
• Relatives of spoonbills — 2013-09-20
• Everglades birds — 2011-07-05
• Frog eaters with curved bills — 2006-11-09
• Nile birds — 2005-10-11
• Graceful birds — 2004-07-07
• Sacred birds, to some — 2002-05-07
• "White" and "scarlet" birds — 1998-01-22
• Long-billed wading birds — 1997-04-28