Black Guillemot

Black Guillemot

Cepphus grylle

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
30–40% · Possible
overall probability at Acadia National Park

📅 Monthly Probability

40–50
Jan
30–40
Feb
30–40
Mar
10–20
Apr
20–30
May
30–40
Jun
30–40
Jul
40–50
Aug
40–50
Sep
40–50
Oct
40–50
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 Acadia National Park 🇺🇸 United States
30–40%
2 Vatnajokull National Park 🇮🇸 Iceland
30–40%
3 Cape Breton Highlands National Park 🇨🇦 Canada
30–40%
4 Gros Morne National Park 🇨🇦 Canada
0–10%
5 Wadden Sea National Park 🇩🇪 Germany
<5%
6 Snowdonia National Park 🇬🇧 United Kingdom
Insufficient data
7 Cairngorms National Park 🇬🇧 United Kingdom
Insufficient data

Quick answers

What are the chances of seeing a Black Guillemot in Acadia National Park?

About 37% of visitor-days record a Black Guillemot sighting in Acadia National Park, based on 4367 observer-days of citizen-science data from GBIF.

When is the best time to see Black Guillemot in Acadia National Park?

December has the highest sighting rate for Black Guillemot in Acadia National Park in our monthly data.

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