• On the ground, it can also be told from the other Pluvialis species by its larger (24–34 mm), heavier bill.
• The other Pluvialis species (the three golden plovers) are slightly smaller with smaller head, thinner bill, and have dark tail, a less obvious or no wing stripe, and white or grey, not black, axillaries.• Pluvialis apricaria - European Golden Plover• Pluvialis dominica - American Golden Plover• Pluvialis fulva - Pacific Golden Plover
From www.birdforum.net