Historical clue formulations

• Prepares for offspring — 2026-06-18
• Tree "houses" — 2026-05-13
• Homes on branches — 2025-12-30
• Fits cozily — 2025-04-04
• Things weavers weave — 2024-08-01
• Feather beds? — 2024-05-25
• Makes some preparations during pregnancy — 2023-07-15
• They're stitched by tailorbirds — 2023-03-24
• Fits, as matryoshka dolls — 2022-12-04
• Makes a house a home, say — 2022-09-30
• Places to brood — 2022-07-13
• Fits together — 2021-09-12
• Fits (inside) — 2021-08-14
• Contents of birdhouses — 2021-07-22
• Locales of wasps and spies — 2020-12-29
• They might take a few swallows — 2020-06-21
• Homes for hornets — 2019-10-29
• Tree houses — 2019-09-02
• Pest control targets — 2019-04-28
• Digs made of twigs — 2019-01-08
• Fits snugly — 2018-09-08
• Hives, e.g. — 2018-04-22
• Aviary parts — 2017-10-15
• Rats' places — 2017-07-05
• Rats' hangouts — 2017-06-24
• Sticky spots? — 2016-08-28
• *Avian digits — 2016-06-16
• Tree houses? — 2016-04-19
• Egg containers — 2016-03-09
• Swallows things? — 2016-01-16
• Flight destinations? — 2015-12-02
• Homes for warblers and wasps — 2015-08-18
• Stacks, as matryoshka dolls — 2015-06-03
• Where chicks hang out? — 2014-10-06
• Where many flights end — 2014-10-05
• Sites for kites — 2014-04-23
• Birds' homes — 2014-03-24
• Exterminators' targets — 2013-11-20
• Flight destinations — 2013-08-20
• Egg containers — 2013-03-25
• Gets settled — 2012-11-23
• Places where talk is cheep? — 2012-09-01
• Takeoff points for many test flights — 2012-07-15
• Places to live in the sticks? — 2011-08-14
• Homes for some colonies — 2011-07-27
• Hatchlings' homes — 2011-02-14
• Forest homes — 2011-01-02
• Forest homes — 2010-10-16
• Fits one inside another — 2010-07-11
• Snuggles — 2010-03-31