Possible Clues:

• Intricate patterns in part of church
• Either of the two wings of a cruciform church
• Strange patterns in church area
• Part of a cruciform church — patterns (anag)
• Various patterns in area crossing nave
• Wing and tail feathers missing one month
• Time passed: some 30 days in cathedral wing
• Religious wing
• Area that separates a nave from a sanctuary
• Area of a church