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Species map · Crucibulum laeve

Common bird's nest fungus map of Turkey: where and when it grows

Our map holds 42 verified records of the common bird's nest fungus (Crucibulum laeve) from 13 provinces of Turkey. Most come from İstanbul, Muğla, Kırklareli and Tokat; records peak in January, February and December.

records
42
provinces
13
regions
6
latest record
Oct 2026

How to identify the common bird's nest fungus

Points are GBIF and iNaturalist records, each linking to its own record. Locations of protected species are rounded. Open on the main map →

Records by province

  • Marmara 27
  • Aegean 7
  • Black Sea 4
  • Mediterranean 2
  • East and Southeast 1
  • Central Anatolia 1

Linked provinces have their own page with every species recorded there. Record density also reflects where observers work.

Which months?

Records by month
Jan9Feb8Mar3AprMay5JunJulAugSepOct4Nov5Dec8

This page covers only where and when the species is recorded in Turkey. For identification and edibility, see the species page. Built from research-grade, geo-referenced GBIF and iNaturalist records, refreshed at the start of every month.

Poisonous look-alikes of the common bird's nest fungus

Records by region: Marmara 27; Aegean 7; Black Sea 4; Mediterranean 2; Eastern and Southeastern Anatolia 1; Central Anatolia 1. Most records come from İstanbul, Muğla, Kırklareli, Tokat, Manisa, Osmaniye, Bolu and Adıyaman.

Records peak in January, February and December; about 21% of dated records fall in September–November and 19% in March–May.

Bird's nest fungi appear in Turkey with the autumn and winter rains; our records run from October to March, with some in May.

On rotting twigs, wood chips, sawdust, straw and plant debris, in garden mulch and along woodland edges, in crowded groups. Cyathus olla is more often found on plant debris in fields, gardens and open ground.

Field bird's nest (Cyathus olla, inedible): Larger (1–1.5 cm), with a grey-brown cup and grey-silver spore packets; it is harmless and goes by the same Turkish name.

Fluted bird's nest (Cyathus striatus, inedible): The inside of the cup is clearly fluted, the outside dark brown and shaggy; its packets are grey.

Frequently asked questions

Where does the common bird's nest fungus grow in Turkey?

Most records come from İstanbul, Muğla, Kırklareli, Tokat and Manisa.

When does the common bird's nest fungus fruit in Turkey?

Records peak in January, February and December.

Which province has the most common bird's nest fungus records?

İstanbul, followed by Muğla, Kırklareli and Tokat. The order also reflects where observers are active.

What habitat does the common bird's nest fungus prefer?

On rotting twigs, wood chips, sawdust, straw and plant debris, in garden mulch and along woodland edges, in crowded groups. Cyathus olla is more often found on plant debris in fields, gardens and open ground.

Can I pick mushrooms where they are recorded?

A record is not a permit. Commercial picking in state forests needs a permit; picking in national parks is prohibited.

How current is this map?

Records are re-fetched from GBIF and iNaturalist at the start of every month and this page updates automatically.

What should I do in case of mushroom poisoning?

Call 112 at once; Turkey's poison centre is 114.

Sources

  1. 6831 sayılı Orman Kanunu (mevzuat.gov.tr) mevzuat.gov.tr
  2. 2873 sayılı Millî Parklar Kanunu, md. 14 (mevzuat.gov.tr) mevzuat.gov.tr
  3. GBIF ve iNaturalist: Türkiye gözlem kayıtları (sitemizin haritası) gbif.org
All sources (6)
  1. Wikipedia (EN): Crucibulum laeve en.wikipedia.org
  2. First Nature: Crucibulum laeve first-nature.com
  3. Wikipedia (EN): Cyathus olla en.wikipedia.org

Data sources and licences

Observations from GBIF.org (human observations and herbarium specimens; records flagged with geospatial issues excluded) and iNaturalist research-grade records, retrieved 2 November 2026. Macrofungi only (Agaricomycetes, Pezizomycetes), named to species. Every point links to its own record, with the recorder and licence (CC0, CC BY, CC BY-NC).

Map: © OpenStreetMap contributors. Province centres: Wikidata. Region comes from the record's GADM province, or the nearest province centre when missing. For protected species (iNaturalist "threatened" or IUCN VU/EN/CR) locations are rounded to ~10 km; locations obscured by iNaturalist are marked "approximate".

An observation shows that a mushroom was seen there on that day, not that it is there now or that it may be picked. Counts reflect how many people record fungi in an area more than how common a species is.

Last updated: Prepared by the Poros Mantar editorial teamReport a correction