Semipalmated Sandpiper
Calidris pusilla
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyScolopacidae (Sandpipers and Allies)
- GenusCalidris (Calidris Sandpipers)
- SpeciesCalidris pusilla (Semipalmated Sandpiper)
The semipalmated sandpiper (Calidris pusilla) is a very small shorebird. The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds. The specific pusilla is Latin for "very small". Within the genus Calidris, the semipalmated sandpiper is most closely related to the western sandpiper (Calidris mauri). It was formerly sometimes separated with some other stints in either Ereunetes or Erolia, but these placements would leave the rest of Calidris a paraphyletic group. Wikipedia →
<5% of wildlife watchers report a Semipalmated Sandpiper sighting in Glacier National Park, based on 23 days of visitor records from GBIF citizen-science data.
Closest Relatives at Glacier National Park
Pectoral Sandpiper
Calidris melanotos
Baird's Sandpiper
Calidris bairdii
Least Sandpiper
Calidris minutilla
Western Sandpiper
Calidris mauri
Stilt Sandpiper
Calidris himantopus
Sanderling
Calidris alba
Spotted Sandpiper
Actitis macularius
Wilson's Snipe
Gallinago delicata
Greater Yellowlegs
Tringa melanoleuca
Long-billed Dowitcher
Limnodromus scolopaceus
Solitary Sandpiper
Tringa solitaria
Wilson's Phalarope
Phalaropus tricolor
📅 Monthly Probability
☀️ 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
Parks Where Found
Quick answers
What are the chances of seeing a Semipalmated Sandpiper in Glacier National Park?
About 1% of wildlife watchers report a Semipalmated Sandpiper sighting in Glacier National Park, based on 23 days of visitor records from GBIF citizen-science data.
When is the best time to see Semipalmated Sandpiper in Glacier National Park?
August has the highest sighting rate for Semipalmated Sandpiper in Glacier National Park in our monthly data.