Birds Of Mexico Ruta Islas Marías, San Blas, Nayarit, México / May-2021 Northern Harrier Gavilán Rastrero (Circus hudsonius) Size: L 18-22" / 45.5-56 cmW 39-46" / 99-117 cmID: → Owl-like facial disc.→ White rump.Similar Species: Swainson's Hawk, White-tailed Kite. Where to Look for: Nay; Chacalilla / Jal; .Antonio Robles Published: Sep 12, 2023