Yes, that proves that they must be sandpipers, even if we did have doubts of those eggs.
A pair of sandpipers were balancing their slender selves on a tiny beach of sand.
Sandpipers, and other birds of that kind, animated the low meadows; and among the bushes I saw the rice-bird.
Their size nearly equals that of the largest of the Sandpipers.
The last of the Sandpipers leave ...