Birch Sawfly

Birch Sawfly

Cimbex femoratus

Daily sighting probability <5% · Rare
at Yekaterinburg

In 3 days ~10% in a week ~20%

5 Verified sightings at Yekaterinburg
15 In 1 park From 2019 to 2026
July Best month
☀️ Diurnal When it's spotted

About the Birch Sawfly

Cimbex femoratus, the birch sawfly, is a species of sawfly in the family Cimbicidae. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Cairngorms National Park 🇬🇧 United Kingdom
~10%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Helsinki 🇫🇮 Finland
~10%
2 Novosibirsk 🇷🇺 Russia
~10%
3 Nizhny Novgorod 🇷🇺 Russia
<5%
4 Kazan 🇷🇺 Russia
<5%
5 Moscow 🇷🇺 Russia
<5%
6 Yekaterinburg 🇷🇺 Russia
<5%

Before you go

What are the chances of seeing a Birch Sawfly in Yekaterinburg?

Rare

Under 5% of wildlife watchers report a Birch Sawfly sighting in Yekaterinburg on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 128th most-seen of the 155 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.

When is the best time to see a Birch Sawfly in Yekaterinburg?

July

In that month about 10% of wildlife watchers report a Birch Sawfly in Yekaterinburg on a given day, against under 5% in August to June, the lowest months. That is one of Yekaterinburg's wettest months, with about 90 mm of rain against 25 mm in February.

What time of day is best to see a Birch Sawfly?

Between 10 am and 1 pm

Across all the parks we cover, that three-hour window holds the most Birch Sawfly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Yekaterinburg the best place to see a Birch Sawfly?

6th of 6

Of the 6 cities where we can rate Birch Sawfly sightings, Yekaterinburg ranks 6th at under 5%. The best odds are in Helsinki (Finland, about 10%), Novosibirsk (Russia, about 10%) and Nizhny Novgorod (Russia, under 5%).

Where does the Birch Sawfly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Birch Sawfly is recorded against all the insects logged in Yekaterinburg (5 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.

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