scubaseason

Flightless Cormorant

Nannopterum harrisi

Sighting evidence at Cape Douglas, Fernandina Island

Cape Douglas hosts significant flightless cormorant nesting colonies on the rocky shore above the dive site, and divers regularly observe the birds transitioning between terrestrial nesting behavior and underwater hunting. Their pursuit-diving takes them to depths of 4 to 5 meters along the lava substrate, where they pursue octopus and small fish with remarkable efficiency. The proximity of active nesting sites means divers can observe courtship displays on the rocks between dives, then watch the same birds hunting underwater minutes later.

Evidence at this site

No confirmed records on file at this site

Flightless Cormorant is listed as a curated species here based on historical reports.

How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites