Sunflower seed shells piling up under a feeder are one of the more annoying parts of feeding garden birds, especially on a patio or near a doorway, and dehusking the seed before it is sold is the direct fix for that rather than any change in bird behaviour. Marriage's sunflower hearts have already had the shell removed.

They are described as high in oil, giving birds a dense energy source, and as a "no mess" food precisely because there is no husk left for birds to discard around the feeder. Marriage's say they suit hanging feeders, table feeders and ground feeding equally, and they can be fed on their own or added into a wider seed mix.

• Dehusked sunflower seed (hearts only)
• High in oil
• No mess - no husks discarded around the feeder
• Suitable for hanging, table and ground feeders
• Can be fed alone or added to a mix
• 20kg sack

On what's missing. No specific oil or fat percentage is published on this card, only the general description of the product as high in oil - if you need an exact figure for comparison against another feed, it is not given here.

Who it's for: anyone feeding in a spot where shell mess matters - near a patio, path or doorway - or who simply wants a no-waste, high-energy seed with nothing for the birds to sort through and discard.