There is more to the RSPB than birds, according to a survey which found they accounted for less than three percent of species in the wildlife charity's nature reserves.
Of the 13,400 species recorded in the annual survey of 200 reserves across the UK, more than half were insects, almost a quarter were fungi and 12% were plants.
The 140,000 hectares of land the RSPB has in its reserves - which covers just 0.6% of the total area of Britain - are home to 68% of the country's native plant species, 78% of its spiders and all our resident reptiles and dragonflies.
The reserves also contain all three native British species of cockroach and all four types of earwig, the charity said.
And one third of all declining, threatened or near-threatened species in the country are found on RSPB sites ranging from woodland to coastal saltmarshes.
Minsmere in Suffolk was the site where most species were recorded, with a massive 5,348 found there, followed by Abernethy in Inverness-shire which had 4,095 and Dungeness, Kent, with 2,761.
Gwyn Williams, head of reserves at the RSPB, said: "Many people still think our reserves are just there for birdwatchers but the reality is very different.
"With such a large area of diverse habitats from reedbeds and heathland to woodland and coastal sites, we have an obligation to look after all kinds of wildlife, not just birds.
"And as any conservationist will tell you, no living thing exists in isolation - maintaining a healthy ecosystem brings benefits for all the species in it."
