Cyathus striatus
The fluted bird's nest is a tiny fungus, usually under 1 cm, that resembles a bird's nest holding lens-shaped 'eggs'. Its outside is hairy and its inner walls grooved. Falling raindrops splash the eggs out of the cup to spread the spores.
Grows in clusters on dead wood, twigs and woody debris in open forests and on wood-chip mulch, from summer to early winter.
Very widespread in temperate areas, recorded from Asia, Europe, the Americas and New Zealand.
Identification suggestions (from the community or from AI) and the information here may be wrong; this app never confirms that anything is safe to eat. Do not consume wild plants, mushrooms or seafood without expert confirmation. Nothing here is medical advice.
The angled sides of the cup let raindrops knock the 'eggs' out — hence the name splash cups.
Never eat a wild mushroom without showing it to an expert
No mushroom should be picked for eating based on this app or a photo. Deadly species look very like the ones foragers look for, and symptoms start hours later. If you suspect poisoning, call your local poison centre or emergency number right away (in Türkiye: 114).
Tiny nest under 1 cm holding lens-shaped 'eggs'
Outside brown and shaggy with downward-pointing hairs
Inside shiny and grooved lengthwise
In clusters on rotting twigs, woody debris and mulch
Not known to be poisonous — still never eat it