
Grey Heron
Ardea cinerea
Silhouette: Rebecca Groom · PhyloPic
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassAves (Birds)
- OrderPelecaniformes (Pelicans, Herons, Ibises, and Allies)
- FamilyArdeidae (Herons, Egrets, and Bitterns)
- GenusArdea (Great Herons and Egrets)
- SpeciesArdea cinerea (Grey Heron)
In 3 days ~80% in a week >90%
About the Grey Heron
The grey heron (Ardea cinerea) is a long-legged wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia, and also parts of Africa. It is resident in much of its range, but some populations from the more northern parts migrate southwards in autumn. A bird of wetland areas, it can be seen around lakes, rivers, ponds, marshes and on the sea coast. It feeds mostly on aquatic creatures which it catches after standing stationary beside or in the water, or stalking its prey through the shallows.
Standing up to 1 metre (3 ft 3 in) tall, adults weigh from 1 to 2 kg (2 to 4 lb). They have a white head and neck with a broad black stripe that extends from the eye to the black crest. The body and wings are grey above and the underparts are greyish-white, with some black on the flanks. The long, sharply pointed beak is pinkish-yellow and the legs are brown.
The birds breed colonially in spring in heronries, usually building their nests high in trees. A clutch of usually three to five bluish-green eggs is laid. Both birds incubate the eggs for around 25 days, and then both feed the chicks, which fledge when 7-8 weeks old. Many juveniles do not survive their first winter, but if they do, they can expect to live for about 5 years.
In Ancient Egypt, the deity Bennu was depicted as a heron in New Kingdom artwork. In Ancient Rome, the heron was a bird of divination. Roast heron was once a specially prized dish; when George Neville became Archbishop of York in 1465, 400 herons were served to the guests. Wikipedia →
Recent sightings of Grey Heron in Porto
LIVEiNaturalistGlobal Distribution
Parks Where Found
Zoos & Centres Where Found
Closest Relatives at Porto
Before you go
What are the chances of seeing a Grey Heron in Porto?
Likely
About 40% of wildlife watchers report a Grey Heron sighting in Porto on a given day, based on 1,859 verified sightings from GBIF citizen-science data. It is the 15th most-seen of the 175 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
When is the best time to see a Grey Heron in Porto?
August to January
In those months about 50% of wildlife watchers report a Grey Heron in Porto on a given day, against about 10% in May, the lowest month.
What time of day is best to see a Grey Heron?
Between 4 and 7 pm
Across all the parks we cover, that three-hour window holds the most Grey Heron sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Porto the best place to see a Grey Heron?
46th of 215
Of the 215 cities where we can rate Grey Heron sightings, Porto ranks 46th at about 40%. The best odds are in Daejeon (South Korea, about 80%), Osaka (Japan, about 70%) and Amsterdam (Netherlands, about 70%).
Where does the Grey Heron sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Grey Heron is recorded against all the birds logged in Porto (1,859 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

