Possible Clues:

• 'Victory' — focus of flagship vessel to find a measure of knots, say?
• Avian dimension
• Bird spec
• Pester, harass
• Rhea stat
• It's about six feet for a turkey vulture
• Measurement for a bird
• Board game whose dice tower is a bird feeder
• Lateral spread of an aircraft or aerial creature
• Section of drawing spanning width