American Oystercatcher
Haematopus palliatus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyHaematopodidae (Oystercatchers)
- GenusHaematopus (Oystercatchers)
- SpeciesHaematopus palliatus (American Oystercatcher)
Closest Relatives at Acadia National Park
American Herring Gull
Larus smithsonianus
Great Black-backed Gull
Larus marinus
Black Guillemot
Cepphus grylle
Ring-billed Gull
Larus delawarensis
Laughing Gull
Leucophaeus atricilla
Common Tern
Sterna hirundo
Spotted Sandpiper
Actitis macularius
Greater Yellowlegs
Tringa melanoleuca
Bonaparte's Gull
Chroicocephalus philadelphia
Razorbill
Alca torda
Semipalmated Plover
Charadrius semipalmatus
Atlantic Puffin
Fratercula arctica
📅 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 American Oystercatcher in Acadia National Park?
About 1% of visitor-days record a American Oystercatcher sighting in Acadia National Park, based on 115 observer-days of citizen-science data from GBIF.
When is the best time to see American Oystercatcher in Acadia National Park?
May has the highest sighting rate for American Oystercatcher in Acadia National Park in our monthly data.