Blackish Oystercatcher
Blackish OystercatcherBlackish OystercatcherBlackish OystercatcherBlackish Oystercatcher

Blackish Oystercatcher

Haematopus ater

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
50–60% · Likely
overall probability at Península Valdés
197 Verified records at Península Valdés
November Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The blackish oystercatcher (Haematopus ater) is a species of wading bird in the oystercatcher family Haematopodidae. It is found in Argentina, Chile, the Falkland Islands and Peru, and is a vagrant to Uruguay. The population is estimated at 15,000–80,000. Wikipedia →

50–60% of wildlife watchers report a Blackish Oystercatcher sighting in Península Valdés, based on 197 days of visitor records from GBIF citizen-science data.

Closest Relatives at Península Valdés

American Oystercatcher
LC Endemic

American Oystercatcher

☀️ Diurnal Bird

Haematopus palliatus

70–80% · Very likely
Magellanic Oystercatcher
LC

Magellanic Oystercatcher

☀️ Diurnal Bird

Haematopus leucopodus

5–10% · With luck
Dominican Gull
LC

Dominican Gull

☀️ Diurnal Bird

Larus dominicanus

90–100% · Very likely
Snowy Sheathbill
LC

Snowy Sheathbill

☀️ Diurnal Bird

Chionis albus

50–60% · Likely
South American Tern
LC

South American Tern

☀️ Diurnal Bird

Sterna hirundinacea

40–50% · Likely
Dolphin Gull

Dolphin Gull

☀️ Diurnal Bird

Leucophaeus scoresbii

40–50% · Possible
Royal Tern

Royal Tern

☀️ Diurnal Bird

Thalasseus maximus

30–40% · Possible
Southern Lapwing
LC

Southern Lapwing

☀️ Diurnal Bird

Vanellus chilensis

20–30% · Possible
Brown-hooded Gull

Brown-hooded Gull

☀️ Diurnal Bird

Chroicocephalus maculipennis

20–30% · Possible
Sandwich Tern

Sandwich Tern

☀️ Diurnal Bird

Thalasseus sandvicensis

20–30% · Possible
Baird's Sandpiper
LC

Baird's Sandpiper

☀️ Diurnal Bird

Calidris bairdii

20–30% · With luck
White-rumped Sandpiper
VU

White-rumped Sandpiper

☀️ Diurnal Bird

Calidris fuscicollis

10–20% · With luck

📅 Monthly Probability

50–60
Jan
50–60
Feb
50–60
Mar
40–50
Apr
50–60
May
50–60
Jun
50–60
Jul
40–50
Aug
50–60
Sep
40–50
Oct
70–80
Nov
50–60
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

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

# Park Country Probability
1 Península Valdés 🇦🇷 Argentina
50–60%
2 Paracas National Reserve 🇵🇪 Peru
30–40%
3 Tierra del Fuego National Park 🇦🇷 Argentina
10–20%

Quick answers

What are the chances of seeing a Blackish Oystercatcher in Península Valdés?

About 57% of wildlife watchers report a Blackish Oystercatcher sighting in Península Valdés, based on 197 days of visitor records from GBIF citizen-science data.

When is the best time to see Blackish Oystercatcher in Península Valdés?

November has the highest sighting rate for Blackish Oystercatcher in Península Valdés in our monthly data.

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