Semipalmated Sandpiper
Calidris pusilla
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyScolopacidae (Sandpipers and Allies)
- GenusCalidris (Calidris Sandpipers)
- SpeciesCalidris pusilla (Semipalmated Sandpiper)
Closest Relatives at Rocky Mountain National Park
Baird's Sandpiper
Calidris bairdii
Least Sandpiper
Calidris minutilla
Spotted Sandpiper
Actitis macularius
Wilson's Snipe
Gallinago delicata
Solitary Sandpiper
Tringa solitaria
Willet
Tringa semipalmata
Red-necked Phalarope
Phalaropus lobatus
Wilson's Phalarope
Phalaropus tricolor
Greater Yellowlegs
Tringa melanoleuca
Marbled Godwit
Limosa fedoa
Lesser Yellowlegs
Tringa flavipes
Long-billed Dowitcher
Limnodromus scolopaceus
📅 Monthly Probability
Fewer than 5 records of Semipalmated Sandpiper at Rocky Mountain 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