An online questionnaire for the National Trust found just 53% of youngsters could correctly identify an oak leaf, while half could not tell the difference between a bee and a wasp.
One in three children failed to identify a magpie and only 47% correctly named a barn owl.
In contrast nine out of 10 were able to correctly name Doctor Who's enemies the Daleks and a similar number recognised Star Wars' Jedi grand master, Yoda.
The survey is part of a National Trust campaign launched in London aimed at encouraging families to spend more time together outdoors.
Television naturalist Nick Baker said: "It's a sad modern phenomenon that has left many of us, and in particular the younger generations, disconnected from the natural world.
"In an age where Nintendos and Playstations compete with tree climbing and pond dipping; the virtual world is winning."
Chyna_Doll
He doesn't say! My son likes trees and tried to hug one once 
but I really must learn the dofferent types so he doesn't become a statistic! 
