Chicken of the woods
Laetiporus sulphureus
Русское название: Трутовик серно-жёлтый
A conspicuous yellow-orange wood-decay fungus that forms layered brackets. Some people report adverse reactions even to correctly identified specimens, and substrate matters. This catalogue is not a recommendation to eat wild fungi.

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 ↗Europe and North America
Bracket-like clusters on tree trunks
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.