Posted: 10/04/2015 at 16:47
Hi Tomsk, they are bulblets that naturally split from the main bulb - this is the way they usually propagate themselves as seeds often don't fully develop in daffodils.
Leave them as they are and let the leaves die down naturally. Once that has happened you can split the baby bulbs from the main one and you then have free bulbs for next year!
They might take a couple of years to reach flowering size though.