A very tangential clue

You are spared a photo from the factory today. As I was making our morning cup of tea I noticed the sun shining on these pyracantha berries down the garden. They are nonetheless a clue, given that birds eat them.

Here's something you might not know, courtesy of the RSPB - the dry pith of ivy berries contains nearly as many calories as Mars bars. How many of each though??? No matter - the birds can keep the berries and I'll stick to the Mars bars - especially ice-cream ones.

Meantime, have a look at my blipfolio for a few photos of the decorations from Food Festivals past.