20 cards where the card types include “bird” and the text includes “{t}”

Aven Archer (Odyssey #6)
Aven Redeemer (Legions #3)
Birds of Paradise (Ravnica Remastered #133)
Clockwork Avian (Masters Edition IV #190)
Defiant Falcon (Nemesis #6)
Dive Bomber (Onslaught #26)
Dream Thrush (Invasion #53)
Druid of the Sacred Beaker (Unstable #106)
Flavor Judge (Unsanctioned #4)
Gilded Goose (March of the Machine Commander #299)
Keeper of the Nine Gales (Legions #42)
Kianne, Dean of Substance // Imbraham, Dean of Theory (Strixhaven: School of Mages #152)
Kianne, Dean of Substance // Imbraham, Dean of Theory (Strixhaven: School of Mages #152)
Pilfering Hawk (Kaldheim #71)
Porcuparrot (Ikoria: Lair of Behemoths #128)
Possessed Aven (Torment #45)
Ranger's Hawk (Adventures in the Forgotten Realms #37)
Shaile, Dean of Radiance // Embrose, Dean of Shadow (Strixhaven: School of Mages #158)
Shaile, Dean of Radiance // Embrose, Dean of Shadow (Strixhaven: School of Mages #158)
Sunbird Standard // Sunbird Effigy (The Lost Caverns of Ixalan #262)
Sunbird Standard // Sunbird Effigy (The Lost Caverns of Ixalan #262)
War Screecher (Ravnica: Clue Edition #80)
Whippoorwill (The Dark #91)

The message was clear to Sorin—time to search for something else.