The crested tit is one of the most iconic birds of the Scottish Highlands, confined entirely to the Caledonian pine forest of Speyside and surrounding areas, making it uniquely vulnerable to the continued loss of ancient pinewoods.
Crested tit welfare depends entirely on the ancient Caledonian pine forest ecosystem of the Scottish Highlands. Loss of old-growth pine with its associated dead wood, rich lichen communities, and diverse invertebrate fauna eliminates the habitat requirements for this highly sedentary species. Dispersal across open ground between forest fragments is very limited, making forest connectivity essential. Climate change may reduce the extent of suitable forest and alter the invertebrate communities on which the species depends.