Chicken of the woods
A conspicuous yellow-orange wood-decay fungus that forms layered brackets.
Armillaria mellea
Русское название: Опёнок осенний
Honey fungus can be a serious root pathogen for trees. The Armillaria complex is taxonomically challenging; other small brown mushrooms on wood include deadly species. Avoid identifying a meal from a picture.

Never decide to eat a wild mushroom from a photograph or online description. A mistake can be fatal. For mushroom ingestion or suspected poisoning, contact emergency medical services or a poison centre immediately, even if symptoms have not appeared.
Irish Poisons Centre mushroom safety ↗Temperate regions including Europe
Living roots, stumps and wood, sometimes parasitic
Images and brief descriptions are for learning, not for reliably identifying a specimen. Take particular care with poisonous plants and mushrooms.
Identification is never guaranteed by a photo. Scientific names are used to reduce confusion between local names.