A 12 year old boy goes missing in 1978, only to reappear once more in 1986. In the eight years that have passed, David hasn't aged. It is no coincidence that at the time David 'comes back', a flying saucer is found, entangled in electricity cables.
Red Kite -- The Red Kite was saved from national extinction by one of the world's longest running protection programmes, and has now been successfully re-introduced to England and Scotland. I like the shift from orange to green.