Aeshna sitchensis
In 3 days ~20% in a week ~40%
Aeshna sitchensis, the zigzag darner, is a species of darner in the dragonfly family Aeshnidae. It is found in North America. The IUCN conservation status of Aeshna sitchensis is "LC", least concern, with no immediate threat to the species' survival. The population is stable. The IUCN status was reviewed in 2017.
Media related to Aeshna sitchensis at Wikimedia Commons Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Gros Morne National Park | 🇨🇦 Canada | |
| 2 | Great Bear Rainforest | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Anchorage | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Zigzag Darner sighting in Anchorage on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 35th most-seen of the 59 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Zigzag Darner in Anchorage on a given day, against under 5% in September and November–May, the lowest months. That is one of Anchorage's wettest months, with about 110 mm of rain against 40 mm in April.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Zigzag Darner sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Anchorage, in our data
Anchorage is the only city on Wallace's Line with enough records to rate Zigzag Darner sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Aeshna
The closest relatives of the Zigzag Darner that you can see in Anchorage (genus Aeshna, Hawkers and Typical Darners) are Variable Darner (about 10%), Sedge Darner (about 10%) and Lake Darner (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Zigzag Darner is recorded against all the insects logged in Anchorage (8 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.
