What are the chances of seeing a Great Cormorant in Porto?
Possible
About 30% of wildlife watchers report a Great Cormorant sighting in Porto on a given day, based on 1,925 verified sightings from GBIF citizen-science data. It is the 19th most-seen of the 175 birds we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.

