Western Sandpiper
Calidris mauri
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyScolopacidae (Sandpipers and Allies)
- GenusCalidris (Calidris Sandpipers)
- SpeciesCalidris mauri (Western Sandpiper)
The western sandpiper (Calidris mauri) is a small migratory shorebird. The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds. The specific mauri commemorates Italian botanist Ernesto Mauri (1791–1836). This is one of the most abundant shorebird species in North America, with a population in the millions. Within the genus Calidris the western sandpiper is most closely related to the semipalmated sandpiper (Calidris pusilla). Wikipedia →
Closest Relatives at Cahuita National Park
Sanderling
Calidris alba
Least Sandpiper
Calidris minutilla
Semipalmated Sandpiper
Calidris pusilla
Pectoral Sandpiper
Calidris melanotos
Spotted Sandpiper
Actitis macularius
Hudsonian Whimbrel
Numenius hudsonicus
Whimbrel
Numenius phaeopus
Willet
Tringa semipalmata
Ruddy Turnstone
Arenaria interpres
Greater Yellowlegs
Tringa melanoleuca
Solitary Sandpiper
Tringa solitaria
Short-billed Dowitcher
Limnodromus griseus
📅 Monthly Probability
Fewer than 5 records of Western Sandpiper at Cahuita National Park — not enough to chart months honestly.
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there