Related Clues:

• Ray, Jay, or A, e.g.
• Martin or swift
• It fills the bill?
• DH, as a rule
• O or Jay
• Yank or Angel, briefly
• Tiger or Twin, briefly
• 20 Across, for example
• Loon or hoopoe
• Crow or crane
• Winter migrator
• Ray or Jay
• Kookaburra, e.g.
• Oriole or Blue Jay, but not a Cardinal
• 91 Down is one