Bird’s nest fungus
Bird’s nest fungus is a small fungus whose fruiting body resembles a tiny nest containing spore-filled capsules called peridioles.
Also known as: bird nest fungus, Nidulariaceae
How big is it?
2 cm · defined fruiting-body height
Also 0.7874 in
Defined fruiting-body height · defined specimen
Typical recorded range: 1 cm to 3 cm.

A little perspective
Bird’s nest fungus vs Sea angel: length comparison
The fruiting-body height of a bird’s nest fungus is approximately equal to the body length of a sea angel.
Bird’s nest fungus is a small fungus whose fruiting body resembles a tiny nest containing spore-filled capsules called peridioles.
A sea angel is a small, transparent swimming sea slug with wing-like appendages, found in cold ocean waters.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.
Measurements, assumptions & sources +
Bird’s nest fungus
Defined fruiting-body height: 2 cm; defined specimen; range 1 cm–3 cm.
A defined 20 mm tall bird’s-nest fungus fruiting body containing several peridioles. Species and maturity affect cup dimensions.
Defined examples — our methodology
The marked defined fruiting-body height is calibrated. Unmeasured illustration details are representative.
Sea angel
Defined body length: 2 cm; representative specimen; range 1 cm–4 cm.
A defined 2 cm adult sea angel modelled on Clione limacina. Body length excludes the extended wing-like parapodia; species, maturity and posture change the span.
The marked defined body length is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 2 cm
We compare the fruiting-body height of a bird’s nest fungus. This is an illustrative comparison value, not a claim that every example is the same. The recorded range is 1 cm to 3 cm.
A defined 20 mm tall bird’s-nest fungus fruiting body containing several peridioles. Species and maturity affect cup dimensions.
The marked vertical span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 2 cm | 1 cm to 3 cm | defined specimen |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueEveryday objectsUS penny1.905 cmDiameterA US penny is a copper-plated coin worth one cent in United States currency.
Around the same scaleLiving thingsSea angel2 cmDefined body lengthA sea angel is a small, transparent swimming sea slug with wing-like appendages, found in cold ocean waters.
Nearest higher valueEveryday objectsUK 1p coin2.03 cmSpecified diameterA UK 1p coin is the one-penny denomination of the decimal pound sterling circulation coinage.Sources and method
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The source records and measurement method remain available for inspection.
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