Which is more important it this picture – Grass or bird?

Captured with: Canon EOS 7D Mark II, Sigma 300-800mm f/5.6 EX DG APO IF HSM, from car.

• Aperture: ƒ/8
• Camera: Canon EOS 7D Mark II
• Focal length: 687mm
• ISO: 640
• Shutter speed: 1/1250s