Hornet nest

The image displays a large hornet nest (likely of the European hornet, Vespa crabro) built on a tree trunk. This is a natural structure created by social insects rather than a commercial product. The nest is constructed from a paper-like material produced by the hornets by chewing wood and mixing it with saliva.

As a natural biological structure, there is no brand, manufacturing facility, or corporate ownership associated with it. These nests are found globally across temperate regions and are part of the local ecosystem. In Poland, these nests are common in forests and occasionally in residential gardens during the summer and autumn seasons.