Orthetrum coerulescens
In 3 days ~50% in a week ~80%
The keeled skimmer (Orthetrum coerulescens) is a species of dragonfly belonging to the family Libellulidae. The keeled skimmer is common in central and southern Europe, marginally entering into Russia, and in North Africa. It is locally common in western Britain and Ireland.
This species is present in Afghanistan; Albania; Algeria; Armenia; Austria; Azerbaijan; Bosnia and Herzegovina; Bulgaria; Croatia; Cyprus; Czech Republic; Denmark; Finland; France; Georgia; Greece; Hungary; Iran, Islamic Republic of; Iraq; Ireland; Italy; Lebanon; Liechtenstein; Lithuania; Luxembourg; Macedonia, the former Yugoslav Republic of; Montenegro; Morocco; Netherlands; Norway; Poland; Portugal; Romania; Russian Federation; Serbia; Slovakia; Slovenia; Spain; Sweden; Switzerland; Syrian Arab Republic; Tunisia; Turkey; Ukraine; United Kingdom.
The typical habitats of Orthetrum coerulescens are pools and streams in acidic heath land, where it is sometimes seen alongside golden-ringed dragonflies. Pools and streams in wet heathland sites are favoured. Orthetrum coerulescens can reach a body length of 40–44 millimetres (1.6–1.7 in). These dragonflies have a... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Plitvice Lakes National Park | 🇭🇷 Croatia | |
| 2 | Aigüestortes National Park | 🇪🇸 Spain | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Pyrénées National Park | 🇫🇷 France | |
| 5 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 6 | Mercantour National Park | 🇫🇷 France | |
| 7 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 8 | Snowdonia National Park | 🇬🇧 United Kingdom |
Possible
About 20% of wildlife watchers report a Keeled Skimmer sighting in Athens on a given day, based on 58 verified sightings from GBIF citizen-science data. It is the 21st most-seen of the 242 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
June and July
In those months about 30% of wildlife watchers report a Keeled Skimmer in Athens on a given day, against under 5% in October to March, the lowest months. Those are among Athens's driest months, with about 15 mm of rain a month against 85 mm in December.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Keeled Skimmer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 20 cities where we can rate Keeled Skimmer sightings, Athens ranks 3rd at about 20%, level with the leaders once rounded. The best odds are in Rostov-on-Don (Russia, about 20%) and Antalya (Turkey, about 20%).
GBIF citizen-science records
It is estimated from how often the Keeled Skimmer is recorded against all the insects logged in Athens (58 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.
