

The Birds · Plate CXXXIII
Sanderling
Calidris alba
Scolopacidae · Taxon 3849
| Length | 18–20 cm |
| Wingspan | 35–41 cm |
| Weight | 40–90 g |
Field marks
- Small, plump shorebird with a rounded body
- Straight, stout black bill about as long as the head
- Round dark eye set in a plain, pale face
- Black legs and feet
- Pale gray upperparts and clean white underparts in nonbreeding plumage; juveniles show checkered upperparts
- Long, pointed wings and a short tail; a bold white wing stripe shows in flight
HabitatPrimarily wave-washed sandy beaches, tideflats, mudflats, rocky shores, and occasional inland lakeshores during migration and the nonbreeding season; breeds on exposed gravel, rocky ridges, and low-growing tundra near ponds or other wet areas.
BehaviorRuns rapidly with advancing and retreating waves, picking prey from the surface and probing wet sand for small invertebrates; often forages and roosts in flocks.
Palette