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CAG bird is a specially painted aircraft, officially flown by the commanding officer of United States Navy Carrier Air Groups. Every carrier-based aircraft squadron of the United States Navy has such an aircraft, which usually has a modex ending with "00" (two zeros).^[1] Due to their unique paint schemes, enthusiasts such as modelers and aircraft photographers show great interest in these aircraft.^[1] Similar terms for "CAG Birds" include:

• Show Bird
• Easter Egg
• Boss Machine
• Head Nuts
• Double Nuts
• Triple Nuts (F/A-18B used by VMFA-321 during mid to late 1990s).